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COMMUNICATION MANUALα2 SIMPLE APPLICATION CONTROLLER

α2 Simple Application Controllers

Foreword

• This manual contains text, diagrams and explanations which will guide the reader in the correct programming and operation of the α2 series controller.

• Before attempting to install or use the α2 Series Controller this manual should be read and understood.

• If in doubt at any stage of the installation of the α2 Series Controller always consult a professional electrical engineer who is qualified and trained to local and national standards which apply to the installation site.

• If in doubt about the operation or use of the α2 Series Controller please consult the nearest Mitsubishi Electric distributor.

• Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment.

• All examples and diagrams shown in this manual are intended only as an aid to understanding the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples.

• Owing to the very great variety in possible application of this equipment, you must satisfy yourself as to its suitability for your specific application.

• Please contact a Mitsubishi Electric distributor for more information concerning applications in life critical situations or high reliability.

• This manual is subject to change without notice.

© 2005 MITSUBISHI ELECTRIC CORPORATION

This manual confers no industrial property rights or any rights of any other kind, nor does itconfer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for anyproblems involving industrial property rights which may occur as a result of using the contentsnoted in this manual.

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α2 SIMPLE APPLICATION CONTROLLERS

COMMUNICATION MANUAL

Manual number : JY992D97701

Manual revision : D

Date : August 2005



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Guidelines for the safety of the user and protection of α2 Simple Application Controllers

This manual provides information for the setup and use of α2 Simple Application Controllersthat are being used in data communication applications. The manual has been written to beused by trained and competent personnel. The definition of such a person(s) is as follows;

a) Any engineer who is responsible for the planning, design and construction of automaticequipment using the product associated with this manual should be of a competentnature, trained and qualified to the local and national standards required to fulfill thatrole. These engineers should be fully aware of all aspects of safety with regards toautomated equipment.

b) Any commissioning or service engineer must be of a competent nature, trained andqualified to the local and national standards required to fulfill that job. These engineersshould also be trained in the use and maintenance of the completed product. Thisincludes being completely familiar with all associated documentation for the said product.All maintenance should be carried out in accordance with established safety practices.

c) All operators of the completed equipment (see Note) should be trained to use thisproduct in a safe manner in compliance to established safety practices. The operatorsshould also be familiar with documentation which is associated with the operation of thecompleted equipment.

Note : Note: the term ‘completed equipment’ refers to a third party constructed device whichcontains or uses the product associated with this manual.

Notes on the Symbols Used in this Manual

At various times throughout this manual certain symbols will be used to highlight points ofinformation which are intended to ensure the users personal safety and protect the integrity ofequipment. Whenever any of the following symbols are encountered its associated note mustbe read and understood. Each of the symbols used will now be listed with a brief description ofits meaning.

Hardware warnings

1 ) Indicates that the identified danger WILL cause physical and property damage.

2 ) Indicates that the identified danger could POSSIBLY cause physical and propertydamage.

3 ) Indicates a point of further interest or further explanation.

Software warning

4 ) Indicates special care must be taken when using this element of software.

5 ) Indicates a special point which the user of the associate software element shouldbe aware of.

6 ) Indicates a point of interest or further explanation.

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Table of Contents

Guideline of Safety ...............................................................................v

1. Communication Capabilities..................................................................1-11.1 System Configurations ........................................................................................ 1-2

1.1.1 Send an SMS Message to a Mobile Phone............................................................... 1-31.1.2 Receive the Short Message from a PC and phone ................................................... 1-31.1.3 Detect The Phone Ringing ........................................................................................ 1-41.1.4 Send an E-mail Message .......................................................................................... 1-51.1.5 Program/monitor from remote PC using a GSM Modem........................................... 1-61.1.6 Program/Monitor from remote PC using a standard Modem..................................... 1-61.1.7 RS - 232C Straight Cable.......................................................................................... 1-7

1.2 Dedicated Protocol Communication .................................................................... 1-81.2.1 Dedicated Protocol Configuration.............................................................................. 1-81.2.2 Diagram for RS-232C Cross Cable ........................................................................... 1-8

2. SMS/SMR/CD Fanctions and the Modem Setting.................................2-12.1 Set the parameters of the GSM modem from VLS software. .............................. 2-1

2.1.1 GSM & Serial Communication Dialog Box ................................................................ 2-22.1.2 The “Initialize Modem...” Setting................................................................................ 2-32.1.3 Pre-Configured GSM Modem Initialization Setting .................................................... 2-3

2.2 The GSM/SMS Function Block ............................................................................ 2-62.2.1 The Short Message Service (SMS)........................................................................... 2-72.2.2 SMS Setting Dialog Box ............................................................................................ 2-8

2.3 The SMR Function Block ................................................................................... 2-102.3.1 The Short Message Receiving (SMR)..................................................................... 2-11

2.4 The CD Function Block...................................................................................... 2-142.4.1 Call Detect (CD) ...................................................................................................... 2-15

2.5 Set GSM Modem Parameters from the Front Panel Keys................................. 2-172.5.1 ComFormat ............................................................................................................. 2-172.5.2 The GSM Init Command (GSM Initialization Command)......................................... 2-182.5.3 Pin Code.................................................................................................................. 2-182.5.4 Set SMS .................................................................................................................. 2-192.5.5 GSM Status ............................................................................................................ 2-20

2.6 Characters in GSM Protocol .............................................................................. 2-212.6.1 The GSM Character Table ...................................................................................... 2-212.6.2 French GSM Characters ......................................................................................... 2-222.6.3 Italian GSM Characters ........................................................................................... 2-22

2.7 AL-VLS/WIN-E Program Example..................................................................... 2-232.7.1 SMS Function Block Example ................................................................................. 2-232.7.2 SMR Function Block Example ................................................................................. 2-262.7.3 CD Function Block Example.................................................................................... 2-29

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3. Remote Access .....................................................................................3-13.1 GSM Remote Access .......................................................................................... 3-1

3.1.1 Set Parameters from the VLS software ..................................................................... 3-13.1.2 GSM & Serial Communication Dialog Box ................................................................ 3-23.1.3 GSM Modem Settings ............................................................................................... 3-33.1.4 The GSM Init Command (GSM Initialization Command)........................................... 3-33.1.5 Command Setting ..................................................................................................... 3-43.1.6 Delay Time ................................................................................................................ 3-43.1.7 GSM Remote Command ........................................................................................... 3-43.1.8 The PIN Code............................................................................................................ 3-4

3.2 Standard Modem Remote Access....................................................................... 3-53.3 Set Parameters from VLS software ..................................................................... 3-5

3.3.1 GSM & Serial Communication Dialog Box ................................................................ 3-63.3.2 Standard Modem Settings......................................................................................... 3-73.3.3 The Command Setting .............................................................................................. 3-73.3.4 The Delay Time Setting ............................................................................................. 3-73.3.5 Standard Preconfigured Modems.............................................................................. 3-8

4. SMS Messaging Diagnostics.................................................................4-14.1 Check points for Mobile Phone Communication Problems.................................. 4-14.2 Check points for E-mail Communication Problems ............................................. 4-14.3 GSM Status ........................................................................................................ 4-2

4.3.1 GSM Status .............................................................................................................. 4-24.3.2 CME Error ................................................................................................................. 4-34.3.3 CMS Error ................................................................................................................. 4-44.3.4 Signal Strength (Sigstreng) ....................................................................................... 4-4

5. Computer Link - Dedicated Protocol .....................................................5-15.1 Data Flow by Link ................................................................................................ 5-15.2 Configuration Diagram......................................................................................... 5-3

5.2.1 Cross-Cable Diagram................................................................................................ 5-35.3 How to read Dedicated Protocol .......................................................................... 5-4

6. AL-VLS/WIN-E Settings for Dedicated Protocol ....................................6-16.1 GSM and Serial Communication Setting ............................................................. 6-16.2 Function Blocks ................................................................................................... 6-66.3 Settings for Dedicated Protocol - Front Panel Keys .......................................... 6-11

6.3.1 Top Menu Setting/Serial Com Settings ................................................................... 6-116.3.2 The “Other Com” Settings ....................................................................................... 6-116.3.3 The Comformat (Communication Format)............................................................... 6-116.3.4 Data Length............................................................................................................. 6-116.3.5 Parity ....................................................................................................................... 6-116.3.6 Stop Bits .................................................................................................................. 6-116.3.7 Baud Rate ............................................................................................................... 6-116.3.8 Default ..................................................................................................................... 6-126.3.9 Station Number ....................................................................................................... 6-126.3.10 Link Block ................................................................................................................ 6-126.3.11 Function Block Bit and Word Data .......................................................................... 6-12

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7. The Command String ............................................................................7-17.1 Format “A” ........................................................................................................... 7-27.2 Format “B” Message............................................................................................ 7-37.3 Control Protocol elements ................................................................................... 7-5

7.3.1 Control Codes ........................................................................................................... 7-67.3.2 No. of Communication Bytes..................................................................................... 7-67.3.3 Format Number ......................................................................................................... 7-77.3.4 Station Number ......................................................................................................... 7-87.3.5 Command.................................................................................................................. 7-87.3.6 Number of Devices.................................................................................................... 7-97.3.7 Device Code............................................................................................................ 7-117.3.8 Device Number........................................................................................................ 7-127.3.9 Device Status .......................................................................................................... 7-127.3.10 Sum Check.............................................................................................................. 7-137.3.11 Error Codes ............................................................................................................. 7-14

7.4 Communication Timing Chart ............................................................................ 7-157.4.1 Read/Write Data from the Controller ....................................................................... 7-157.4.2 Communication Time .............................................................................................. 7-15

7.5 Character Area Data Transmission ................................................................... 7-167.5.1 Read Data Transmission......................................................................................... 7-167.5.2 Write Data Transmission ......................................................................................... 7-177.5.3 Time Switch Data Transmission .............................................................................. 7-19

7.6 Commands ........................................................................................................ 7-207.6.1 Communication Line Check .................................................................................... 7-217.6.2 Read Command ...................................................................................................... 7-227.6.3 Write Command ...................................................................................................... 7-247.6.4 Remote RUN/STOP Operation ............................................................................... 7-267.6.5 Time Switch Settings............................................................................................... 7-277.6.6 VLS Time Switch Settings (Sample) ....................................................................... 7-367.6.7 RTC Read Command.............................................................................................. 7-387.6.8 RTC Write Command .............................................................................................. 7-39

7.7 Sample Visual Basic program ........................................................................... 7-40

8. Dedicated Protocol Error Diagnostics ...................................................8-18.1 Check points for Dedicated Protocol .................................................................. 8-1

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MEMO

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α2 Simple Application Controllers Communication Capabilities 1

1. Communication Capabilities

The α2 Simple Application Controller has a wide range of communication capabilities thatinclude remote programming, sending SMS messages to mobile telephones or e-mailaccounts, and reading/writing data using a dedicated protocol. These powerful features bring anew era of information transfer possibilities to the simple application controllers.

The α2 can be used to monitor and control machines in remote stations and notifymaintenance personnel in case of machine error or emergency situations. Remote monitoringthrough the AL-VLS/WIN-E software (version 2.00 onwards), hereafter referred to as VLS, canprovide machine production and status updates as well as enable programming or parameterupdates without the necessity of local access.

The Dedicated Protocol option gives the user the ability to transfer and monitor data from aperipheral device without the use of VLS software. Programmers familiar with C, C++, VisualBasic, or similar packages can write specialized communication programs.

Both standard and GSM modems can connect to the α2 controller.

The most powerful function is the ability to send SMS packets to e-mail accounts or mobilephones. The new functional block which strengthens the communication from external equipment wasadded to α2 Controller (version 2.20 or later).The new functional blocks is "Short Message Receiving(SMR) "and" Call Detect (CD).""Short Message Receiving (SMR)" changes an output by the character string of a mailaccount. And "Call Detect (CD)" By GSM modem or an analog modem that supports"CallingLine Identification Presentation(CLIP)", an output is changed by call RING of a telephone.This functionality enables messages to be sent from remote locations to maintenance person-nel or the appropriate staff thus reducing downtime for machines and the necessity for on sitepersonnel at each location. The α2 Series Controller can connect to a GSM modem or stan-dard modem to provide remote program upload/download, to monitor devices, set FunctionBlock parameters, or change the I/O status. Program upload/download can be performedremotely by a PC that is using VLS software.

The procedure for Dedicated Protocol, which can remotely monitor or set parameters withoutusing the VLS software, is discussed in Chapters 5 ~ 9.

Error messages can be prepared and placed on the α2 display to be sent as the SMS packet.Please refer to section 2.3 to view the available character set for SMS/GSM communication.The α2 Series Controllers communicates with a GSM or Standard modem from theconnection port on the right side.

Note: The α controller communicates to a modem via the left side port and cannot connect toa GSM modem.

1 - 1


1.1 System Configurations

There are four methods of modem communication available in the α2 (AL2-14MR-*, AL2-24MR-*) Series Controllers 1 ) Send an SMS packet to a Mobile phone.2 ) Send an SMS packet (inside an e-mail) to an e-mail account.3 ) Remote access via GSM modem.4 ) Remote access via standard Modem.5 ) RS-232C Communication for Dedicated Protocol.

The configurations and equipment are listed below.

α2Series

Personal computer- Programming Software

(AL-PCS/WIN-E)- Dedicated protocol- E-Mail application

Cellular Phone(Supporting SMS message)

Sending SMS Message

GSMModem

Remote Maintenance (Using Radio Wave), Sending E-Mail

Modem

Remote Maintenance (Using Telephone Line)

Modem Modem

Using Dedicated Protocol

1 - 2


1.1.1 Send an SMS Message to a Mobile Phone

The contents of the display screen will be sent as an SMS packet to a mobile telephone.

1.1.2 Receive the Short Message from a PC and phone

The GSM short message (SM) can be sent from a Mobile phone, a Normal Phone (with SMfunctionality) or PC to a GSM modem that is connected to an α2 controller.

Table 1.1:SMS Message Setup

No. Description

1 α2 (AL2-14MR-*, AL2-24MR-*) Series Controller

2 AL2-GSM-CAB

3 GSM Modem (with SIM card and Antenna)

4 SMS Provider

5 Mobile Telephone


No. Description


2 AL2-GSM-CAB


4 SMS Provider

5 Mobile Telephone,Nomal Phone(with SM functionality),PC

OUT1

OK

-

+

ESC

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

SMS Provider➀ ➁

➂

➃➄

OU T1

OK

-

+

E SC

OU T3 9

RELAY OUTPUT 6 5

OU T 8

OU T2 OU T4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

S M S P ro vid er➀ ➁

➂

➃➄

1 - 3


1.1.3 Detect The Phone Ringing

In case a GSM modem or an analog modem that supports Calling Line Identification Presenta-tion (CLIP) is called, the number of the calling partner is sent by the modem by the AT notifica-tion "+CLIP" attached to the RING notification.


No. Description


2 AL2-GSM-CAB


4 RS-232C Straight Cable (See Section 1.1.7)

5 Standard Modem

6 Mobile Telephone,Nomal Phone

OUT1

OK

-

+

E S C

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

➀ ➁

OUT1

OK

-

+

E S C

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

➀ ➁

➂

➃

C ALL

➄

➅

1 - 4


1.1.4 Send an E-mail Message

The SMS packet can be placed inside an e-mail as text. The e-mail address is entered into α2system parameters through the VLS software or the controller main menu. Refer to chapter 2to 4 for further detailed information.

The SMS packet will be the contents of the Display screen as the Input pin for the SMS/GSMFunction Block comes ON.

The display screen consists of 4 rows of 12 columns as shown at right.

4 Rows

12 ColumnsWhen the Display contents are placed into the SMS message or the e-mail message, they col-umns will be lined up as a continuous string of 48 characters.

Table 1.4:GSM Modem E-mail Setup

No. Description


2 AL2-GSM-CAB


4 GSM Gateway Provider

5 Standard RS-232C modem

6 Straight cable

7 PC with VLS software

GSM GatewayService Provider

OUT1

OK

-

+

ESC

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

➀ ➁

➂

➃

➄ ➆➅

1 - 5


1.1.5 Program/monitor from remote PC using a GSM Modem

Use the VLS software to monitor and set parameters and bit devices or to upload/downloadprograms.

1.1.6 Program/Monitor from remote PC using a standard Modem

Use the VLS software to monitor and set parameters and bit devices or to upload/downloadprograms. The Modem on the PC end must be a serial communication modem.

Table 1.5:GSM Modem Program/Monitor Setup

No. Description


2 AL2-GSM-CAB

3 GSM Modem (with SIM card and antenna)

4 GSM Gateway Service Provider

5 Standard Modem

6 RS-232C Cable specified by Modem Manufacturer


Table 1.6:Standard Modem Setup

No. Description


2 AL2-GSM-CAB

3 RS-232C Straight Cable (See Section 1.1.7)

4 Standard Modem

5 Standard Modem

6 RS-232C Cable as specified by Modem manufacturer


G S M G atewayS ervice P rovider

OUT1

OK

-

+

ESC

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

➀ ➁

➂

➃

➅

➄

V LSP rogram

7

OUT1

OK

-

+

ESC

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

VLSProgram

1 - 6


1.1.7 RS - 232C Straight Cable

The cable pinout and connector information is given below.

A L2-G S M -C A B S ide(9-p in D -S ub fem ale)

1

2

3

9

8

7

6

5

4 20

22

1

2

3

8

7

6

5

4

M odem S ide(25-p in D -S ub m ale)

1 - 7


1.2 Dedicated Protocol Communication

The α2 (AL2-14MR-*, AL2-24MR-*) Series Controller can transfer data To/From a personalcomputer, HMI, or other peripheral equipment via Dedicated Protocol. Programs for DedicatedProtocol can be written in C++. Visual Basic, or similar high-level programming languages. Please see the information in Chapters 5-8 for more information on Dedicated Protocol.

1.2.1 Dedicated Protocol Configuration

The peripheral equipment acts as the Master in the Dedicated Protocol configuration. Thecommunication takes place via a 1:1 RS-232C communication link.

Table 1.7:Dedicated Protocol Setup

1.2.2 Diagram for RS-232C Cross Cable

The pinouts and connector types for the RS-232C cross cable are shown in the figure below.Both the connectors and the wiring are equivalent so that either side can be connected to theAL2-GSM-CAB or the peripheral device.

No. Description


2 AL2-GSM-CAB Cable

3 RS-232C Cross Cable (see section 1.2.2)

4 PC or other peripheral device

OUT1

OK

-

+

ESC

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

(9-pin D-Sub female) (9-pin D-Sub female)

2

3

8

7

6

5

4

3

2

7

8

4

5

6

1 - 8

α2 Simple Application Controllers SMS/SMR/CD Fanctions and the Modem Setting 2

2. SMS/SMR/CD Fanctions and the Modem SettingSMS messages can be sent to mobile phones and e-mail accounts via a GSM modem ifcertain parameters in the α2 controller are correctly configured. The output of SMR changes, when the command text is exactly included in Short Message.The output of CD changes, when called from the modem that supports Calling Line Identifica-tion Presentation (CLIP).These parameters can be set quickly and easily in the VLS software or from the front panelkeys. Refer to section 1.1 for the system configuration.

2.1 Set the parameters of the GSM modem from VLS software.

The Visual Logic Software (VLS) provides the easiest method toset the parameters and download them to the controller. Thecommunication method is the first setting necessary in the VLSsoftware. When use a standard modem by CD Funcion Block, see section3.3.

Open or start a new program and then choose “Option” on themenu bar. Click “GSM and Serial Communication” to open thedialog box necessary to begin parameterisation.

2 - 1


2.1.1 GSM & Serial Communication Dialog Box

The GSM and Serial Communication Dialog Box is used to set the equipment andcommunication type for the controller. Refer to the AL-VLS/WIN-E Software Manual for further information concerning VLS.Click the “GSM” option to enable GSM telemetric functionality.

(A) Not Use - This default setting is for situations in which no communication will be used. TheAT command is not activated.

(B) Modem - This setting is used when a standard modem will be connected to the α2 for usein Remote Access. (C) GSM - This setting is used when a GSM modem will be connected either to send an SMSmessage or for Remote Access. (D) Other - This setting is used for Dedicated Protocol communication.(E) Pin Code - The GSM PIN (Personal Identification Numbers for use of GSM)(F) Pin Code with the quotation mark - GSM SIM PIN is sent to the modem in quotationmarks (necessary for Sony Ericsson GSM modem)(G) Remote Access - Setting to allow GSM modems to have Remote Access.(H) Data Format - Settings for Com ports and message protocol. (I) Initialize Modem - AT Command used to initialize a modem. See section 2.1.2 for moredetails.

A)

B)

D)

(E

(F

( I

H)

C)

(G

2 - 2


2.1.2 The “Initialize Modem...” Setting

When the “Initialize Modem...” button is clicked, the “Initialize Controller Modem” dialog box isdisplayed. This box is used to enter the AT command for the modem and the “Power OnDelay” time.

A) The “Initialize Command” BoxEnter the AT command for the modem. This setting will be automatically entered if one of thepreconfigured modems is chosen, see section 2.1.3.

B) The Power On Delay

The Power On Delay will set the time in seconds that the α2 will wait on power-up beforesending the Modem Initialization command. The delay can help to ensure that the modem isready to receive the signal from the α2 in case there is a difference in the time necessary topower-up each item.

2.1.3 Pre-Configured GSM Modem Initialization Setting

If using the Modem or GSM option, a preconfigured modem can be used. Choose the downarrow to view the modem options.

Choose one of the listed modems and the AT command will be automatically entered into thesoftware parameter settings in “Initialize Modem...” The frame above shows a preconfiguredsetting for a GSM modem. The option for the GSM modems is listed below.

A)

B)

2 - 3


GSM Preconfigured ModemsPlease refer to the Table 2.1 for information on the pre-configured modems available in AL-VLS/WIN-E for GSM modems.

AT Command Profile for GSM ModemsPlease refer to the Table below for information on the AT command for GSM modems.

Note: Additional parameters for the Siemens M20T GSM modem can be included via editing the GSM.ini file.

Table 2.1: GSM Preconfigured Modem Setting

Maker name Model name Modem command (AT command)

Mitsubishi MIM-G01 AT+IPR=9600;+CICB=0;+IFC=0,0;+CMEE=1;E0S0=2&W

Siemens TC35i AT+IPR=9600;+IFC=0,0;+CMEE=1;E0S0=2&W

Siemens MC35i AT+IPR=9600;+CMEE=1;E0S0=2&S0\Q0&W

Siemens Siemens M20T AT+IPR=9600;+IFC=0,0;+CMEE=1;E0S0=2&W

Sony Ericsson GM29 AT+IPR=9600;+IFC=0,0;+CMEE=1;E0S0=2&W

Tixi HNG1 AT+IPR=9600;+CICB=0;+IFC=0,0;+CMEE=1;E0S0=2&W

Wavecom WMOD2 AT+IPR=9600;+IFC=0,0;+CMEE=1;E0S0=2&W

Table 2.2: AT Command Reference for GSM Modems

Item ContentExample Setting

M20T

Enable command echo Echo mode OFF E0

Set number of rings before automatically answering the call

Enable automatic answering on the ring twice

S0=2

Set circuit data set ready (DSR) function mode

DSR always ON &S0

Set TE-TA local data flow control

• Specifies the method which will be used by TE when data is received from TA: None

• Specifies the method which will be used by TA when data is received from TE: None

+IFC=0,0

Report mobile equipment error Enable result code and use numeric value +CMEE=1

Set fixed local rate Baud Rate: 9600 bps +IPR=9600

Store current parameter to use defined profile

The user profile is stored in non-volatile memory

&W

2 - 4


Note:

The Siemens M20T GSM modem has been used as the default modem for the α2 SeriesController, however, if the user has installed a GSM modem of their choice with a different ATcommand then additional AT commands can be included.

Having installed VLS to the Program files directory.

C:\Program Files\Alvls\BIN

please choose the GSM.ini file that contains AT information for GSM modem selection in VLS.

Contents of the GSM.ini file:

; This is GSM.ini File, used to Display GSM Modem Models ; and their Initialization commands. This file is used; while Initializing the Controller GSM.;; Please add any new Modem models and Initializing commands; only at the end of the file. An example is given below:;;1="USRoboticsXXX","AT&F"; Here "1" is serial number in increasing order; "USRoboticsXXX" is GSM Modem model; "AT&F" is the initializing command (Max 64 Chars).;[Modem]

1="New",""2="SIEMENS M20T","ATE0S0=2&S0;+IFC=0,0;+CMEE=1;+IPR=9600&W"

Simply follow the instruction listed above, subsequently, the additional GSM modem will beincluded with attached AT command string.

2 - 5


2.2 The GSM/SMS Function Block

The GSM/SMS Function block is the trigger to send SMS messages. To enter or edit the GSM/SMS parameters, double click on the icon to open the Short Message Service dialog boxdescribed in Section 2.2.2.When two or more Function Blocks are trying to send a message at the same time, the first toconnect will send its SMS message. The other GSM/SMS FB(s) will be placed in “Wait” status.All the FBs will send their messages in turn.

A) The Input SignalThe α2 controller will send the SMS message to the chosen destination when the input pin isactivated. Even if the Input pin is turned OFF during the process, the operation will continueuntil the message is sent or three retries have been completed.

Input signals will be ignored when the Output pin is On or the when the Function Block is in“Wait” status. B) The Output SignalThe Output signal comes ON when the SMS message has been successfully sent or the finalretry has taken place. If the Input signal that began the operation remains ON, the Output will remain ON. If the Input signal turns OFF during the send operation, the Output signal will remain ON forone program scan after the send operation is complete and then turn OFF. C) The Word OutputCheck the status of the transmission by checking the Output Word data. The data can bechecked in the program or by connecting the Output Word data to a Display FB.

Table 2.3: Output Word Value

Bit Description

b0 Transmission is Complete

b1 Transmission or retry in Progress

b2 Transmission is in “Wait” status

b3 Transmission Failed

b4 Transmission did not occur due to an SMS Parameter Error

b5 - b15 Reserved, will always be 0

A)

(B

(C

2 - 6


After the Input Pin is turned OFF, the Word Output will also be reset to 0 when thecommunication is complete.

Note: The Word Value will display a hexadecimal number. Convert the hexadecimal number tobinary form to check the values against Table 2.5 Output Word Value parameters. It is possiblethat multiple bits will be ON simultaneously. The status of the entire controller can be seen in the Diagnosis of Controller dialog boxdescribed in Chapter 4.

2.2.1 The Short Message Service (SMS)

The Short Message Service dialog box is used to choose whether to send the SMS messageto a mobile phone or an e-mail address. If an e-mail message is chosen, the address isentered in the E-mail entry block at the bottom of the box. Only one e-mail address can beentered per GSM/SMS Function Block.

A) CommentInput a comment to label the function block. The comment will be shown on the VLS softwaredisplay if the “Display Comment” block is checked.

B) Display Signal Number Check this box to display the Function Block number on the VLS software display.

C) Setting This box will open the SMS Setting Dialog box described in Section 2.2.2. The SMS messagedestinations are input in the SMS Setting dialog box.

A) (B

(CD)

E)

F)

2 - 7


D) SMS Service CenterThis box shows information regarding access to the SMS Provider. The information is enteredin the SMS Setting Dialog Box described in section 2.2.2. E) DestinationThe possible Destination telephone numbers and the e-mail Gateway parameter are shown.Choose the desired Destination phone number or Gateway setting for the specific GSM/SMSFunction Block by clicking the appropriate circle. The choice of a mobile phone number will complete the selection process.If the Gateway setting is chosen, the destination e-mail address must be entered in the “E-mail” box. Every GSM/SMS FB can have a different e-mail address. F) E-Mail Enter the destination E-mail address for the SMS message.

2.2.2 SMS Setting Dialog Box

The SMS Setting Dialog box is accessed from the Short Message service (SMS) dialog box inany GSM/SMS Function Block. The SMS Setting dialog box is not specific to a single FunctionBlock. The parameters entered here apply to all Function Blocks.

The parameter settings are the data required by the SMS provider to set up the destinationlocations. Messages can be sent to 1) three telephone numbers or 2) two telephone numbersand one Gateway number. The same Gateway can be used for multiplee-mail accounts so that the only limit on e-mails is the α2 programming memory (200 FBs,5000 bytes). Each GSM/SMS Function Block can service a single e-mail address.

A)

B)

D)

E)

(C

2 - 8


A) SMS Service Center MobileEnter the number given by the SMS Provider for Mobile access. It is possible that the samenumber will be used for Gateway access. Please verify with the Service Provider whether theInternational code is needed at the beginning of the phone number.

B) SMS Service Center GatewayEnter the number given by the SMS Service Provider for Gateway access. It is possible thatthe same number will be used for Mobile access. Please verify with the Service Providerwhether the International code is needed at the beginning of the phone number.

C) Valid Period This is the requested period for the message to exist on the Server. The time can be set from aminimum of five minutes to a maximum or 63 weeks. This parameter is ultimately under thecontrol of the Service Provider and the time period will be decided according to their companypolicy.

D) Destination - Mobile PhoneClick the Mobile Phone circle to input data for a mobile phone. Use the “Name #” as anoptional memo area. Enter the Destination phone number in the “Phone Number #” box.Please verify with the Service Provider whether the International code is needed at thebeginning of the phone number.

E) Destination - GatewayClick the Gateway circle to input data in order to send an e-mail. Use the “Name #” as anoptional memo area. Enter the e-mail server access code from the Service Provider in the“Phone Number #” box.

These destination numbers will be valid for all SMS function blocks. E-mails can be sentto as many addresses as the α2 memory allows. SMS messages can be sent to amaximum of three telephone numbers.

2 - 9


2.3 The SMR Function Block

The GSM short message (SM) can be sent from a cell phone, a normal phone (with SM func-tionality) or PC to a GSM modem that is connected to an α2 controller.

α2 controller detects the delivery of SM by the modem and downloads the SM from themodem.The Short Message Receive FB (SMR FB) searches for the occurrence of a commandin the SM.The command is given as text string in the FB parameter.In case the command text is exactlyincluded in the SM, outputs are changed.To enter or edit the SMR parameters, double click on the icon to open the Short MessageReceiving dialog box described in Section 2.3.1.

A) The Input SignalThe α2 controller will receive a message when the input pin is activated.For normal operation the input must be ON.When Input is OFF, all output values are hold andthe function block doesn't care an incoming short message.Input is ON when left open(notconnected).When Reset and Input are ON at the same time, only Reset becomes active.

B) The Reset SignalResets the outputs when ON.Reset takes priority over Input and takes priority over a command in an incoming short message.Reset is OFF when not connected.

C) The Output SignalThe output is set ON, when the switch ON command is found in the received short message.The output is set OFF, when the switch OFF command is found in the short message.When Reset is ON, the bit output is reset (OFF).When Input is OFF the bit output value is hold.

D) The Word OutputWord output for transferred values.The output is set ON, when the switch ON command is found in the received short message.The output is set OFF, when the switch OFF command is found in the short message.When Reset is ON, the bit output is reset (OFF).When Input is OFF the bit output value is hold.

A) (C

(D

B)

2 - 10


2.3.1 The Short Message Receiving (SMR)

The Short Message Service dialog box is used for a parameter setup when receiving a shortmessage.

A) CommentThis edit box is used to enter a comment that will be displayed above the SMR icon and onlywhen the "Display Comment" box is checked.

B) Display Signal NumberIf this check box is checked the signal number will be displayed next to the function icon.

C) Display Monitor InformationIf this check box is checked the monitor information will be displayed below the function icon.This information is displayed only in monitor and simulation mode.

D) Phone NumberThis phone number is compared with a phone number of an incoming call.

Asterix Character in phone numberThe asterix character '*' can be used to terminate phone number or can be stand-alone. It takes place for any combination of numbers. Using the '*', one SMR FB can switch for agroup of phone numbers.

A)(B

(C

E)

G)

H)

D)(F

(I

2 - 11


Table 2.4: Phone numbers and Outputs

E) - AcknowledgeIf this check box is checked, then an Acknowledge flag will be set.

Report short message handling

Acknowledge messages

FB number Caller's phone number FB Output

+49 21 02 12 34 56 7 +49 21 02 12 34 56 7 changed

+49 21 02 12 34 56 7 +49 21 02 12 34 56 8 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 56 78 no change

+49 21 02 12 34 56 7* +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 * +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 8 changed

+49 21 02 12 3* +49 21 02 12 34 56 78 changed

* Any phone number changed

+* Any international phone number changed

Condition Transmitted Short Message

α2 in Run Mode, all commands of SM successfully processed "OK"

α2 in Run Mode, some commands in SM were erroneous. "Error"

α2 in Run Mode, Sender of SM has no authorization "No access"

α2 in Run Mode, Password Protection Set, Password invalid or not Set "No access"

GSMModem α2

New Short Messagereceived,stored in memory

Request ShortMessage

Transfer ShortMessage

Transfer report SM.See Message Table

Check Password

Check Commands

ShortMessage

ShortMessage

Erase SM

2 - 12


- RetentiveCheck the "Retentive" checkbox is store the output value even after a Power cut.

- MaintenanceIf this check box is checked the maintenance mode will be initiated.

F) Short Message AgeThis value defines the duration of time that the short message is stored.User can click "+" or "-" button to increase or decrease the short message age.

G) Word Output RangeThis parameter is only used for when the word output mode is active.

-Min. valueLower limit of the word output value. In case the word output value is smaller thanthe min. value set, thus, the min. value will become active. Min. Value range: -32768 (max. value -1)

-Max. ValueUpper limit of word output value. In case the word output value is greater than the max.value, thus, the max. value will become active. Max. Value range: 32767 (max. value +1)

H) Short Message Command-Bit Output

The Bit output can be switched ON and OFF by the appropriate short message command.

-Word OutputThe word output value can be set by the appropriate value held in the short message command.

I) SMR PasswordSetting the SMR password in this dialog box will create a common password for all equivalent SMR Function blocks.Setting Range: 0 and 9999.

In order to avoid serious injury and the machine damage caused by unintended SMR FBoperation, provide safety devices as countermeasure.

2 - 13


2.4 The CD Function Block

In case a GSM modem or an analog modem that supports Calling Line IdentificationPresentation (CLIP) is called, the number of the calling partner is sent by the modem by the ATnotification "+CLIP" attached to the RING notification. α2 extracts the callers's number after agiven number of RING notifications. In case the numbers of digits of both phone numbers and the phone numbers itself are equal,the CD FB output is switched on. To enter or edit the SMR parameters, double click on the icon to open the Short MessageReceiving dialog box described in Section 2.4.1.

A) The Input SignalEnables the CD FB operation.For normal operation the Input must be ON.When Input is OFF, the output is hold and the function block doesn't check caller's number.Input is ON when left open (not connected).When Reset and Input are ON at the same time,only Reset becomes active.

B) The Reset SignalResets the bit output when ONReset takes priority over Input and takes priority over an incoming call.Thus, when Reset isON, an incoming call has no affect.Reset is OFF when not connected.

C) The Output SignalBit output.The output is set ON, when the caller's number is equal to the stored phone number and Inputis ON.The output state is hold, when Input is OFF, and it is reset (set OFF), when Reset is ON.

A)

(CB)

2 - 14


2.4.1 Call Detect (CD)

The Call Detect dialog box is used for a Phone Number and Number of rings setup..

A) CommentThis edit box is used to enter a comment that will be displayed above the CD icon and onlywhen the "Display Comment" box is checked.

B) Display Signal NumberIf this check box is checked the signal number will be displayed next to the function icon.

C) Display Monitor InformationIf this check box is checked the monitor information will be displayed below the function icon.This information is displayed only in monitor and simulation mode.

D) Phone Number Length: 28 characters, including " +,-,(,),*,0,1,2,3,4,5,6,7,8,9 "

Asterix Character in phone numberThe asterix character '*' can be used to terminate phone number or can be stand-alone. It takes place for any combination of numbers. Using the '*', one CD FB can switch for a groupof phone numbers.

A)

B)

D)

E)

C)

F)

(G

2 - 15



E) MaintenanceIf this check box is checked maintenance mode will be selected.

F) RetentiveCheck the "Retentive" checkbox is store the output value even after a Power cut.

G) Number of RING before call detectRange: 1~20

Cautions for the use of both Call Detec and remote access- When it remotely accesses from the same telephone number for Call Detect, CD and FB operate.Cautions for misoperations- CD FB operates also by a misoperation of a telephone.

In order to avoid serious injury and the machine damage caused by unintended CD FBoperation, provide safety devices as countermeasure.


+49 21 02 12 34 56 7 +49 21 02 12 34 56 7 changed

+49 21 02 12 34 56 7 +49 21 02 12 34 56 8 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 56 78 no change

+49 21 02 12 34 56 7* +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 * +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 8 changed

+49 21 02 12 3* +49 21 02 12 34 56 78 changed



2 - 16


2.5 Set GSM Modem Parameters from the Front Panel Keys

The settings required to send SMS packets via a GSM modem or to setup the α2 controller for remote access can be accomplished with thefront panel keys.

To begin the process from the Top Menu, scroll down to “Others/SerialCom/GSM” and press “OK” to view the options shown at right.

2.5.1 ComFormat

Upon entering the GSM option, the ComFormat dialog will be the firstoption. The ComFormat allows the user to set the communicationsettings for Data Length, Parity, Stop Bit, and Baudrate. Mostcommunications can be accomplished with the Default settings.

Scroll to the setting to be adjusted.

Data Length Select a Data length parameter of 7 or 8 bits.

ParitySelect from three options for Parity - None, Odd or Even.

Stop BitsChoose the number of stop bits - 1 bit or 2 bits.

Baud RateSelect the baud rate - 9600 or 19200 bps.

DefaultThe controller can be returned to the default communication settings (DataLength = 8 bits;Parity = None; Stop Bits = 1; and Baud Rate = 9600 bps) by pressing “OK” when the pointer ison the Default option shown in the ComFormat box.

S e r i a l C oN o t U s e

G S MO t h e r

M o d e m

m

C o m

GSMC omF o r ma tGSM I n i tGSM R emoP I N C o d eS e t SMS

t e

GSM S t a t u s

D a t a L e n g tC omF o r ma t

hP a r i t yS t o p b i tB a u d r a t eD e f a l tu

8 b i t sD a t a L e n g t h

7 b i t s

P a r i t yN o n

E v eOd d

e

n

S t o p b t1 b i

it

2 b i t s

B a u d r a e9 6 0 b p

t0 s

1 9 2 b p s0 0

2 - 17


2.5.2 The GSM Init Command (GSM Initialization Command)

The GSM modem must have an initialization command string. Afterchoosing the “GSM Init” option, the Command and Delay Time settingswill appear.

Command Setting Choose “Command” to enter the AT command. Details for the ATcommand should be included in the literature of the modem. Enter the string by choosing the characters using the “ ” and “ ”arrows. When a desired letter is shown onscreen, move to the right by pressing the “ ” key.The character shown will remain and the cursor will move to the right. Do not press the “OK”key until the command has been entered in its entirety.

Move to the left for editing purposes with the “ ” key.

Delay TimeThe Delay Time Setting will delay the transmission of the initializationcommand while the modem completes its power up. Use the “+” key to increment the value and the “-” to decrement thevalue within the range of 0 - 10 seconds. Enter the value by pressingthe “OK” key.

2.5.3 Pin Code

Enter the PIN (Personal Identification Number) It is necessary to enter a PIN received from the Service Provider whenthe α2 controller is used to send SMS packets. Use the “+” and “-”keys to choose the digits of the code and the “ ” and “ ” keys to moveto adjoining digits. SIM PIN setup [“****”] or [****] can be activated and deactivated by the cursor and cursor soft key.

All the numbers must be set to an integer value or a PIN Error will be received. Press the “OK”or “ESC” key to return to the PIN entry display. Finish entering all integer values into all fourdigits and press “OK” to enter the PIN.

Cancel the PINTo Cancel an existing PIN, enter the PIN option and confirm with the“OK” button the intent to Cancel the code. The PIN does not have to beentered in order to Cancel the PIN.

Use the “ESC” button to return to the GSM menu.

GSM I i tnC omma n dD e l a y T i me

GSMC omma n d[ A ]= > ? ABCDE

I n i t 0 1

< @

GSM I n i tD e l a y T i me

0 s

P I N C o eS e t p

[ ∗

du

∗ ∗ ∗ ]

P I N C o eC a n e

dc l

O K o r E S C

2 - 18


2.5.4 Set SMS

The SMS menu is used to set the telephone numbers for the ServiceProvider, the destination numbers for mobile phones, the access codefor e-mail messages, and the Validity Period of the messages.

SMS Provider Mobile Access Number (SMSC1)The SMSC1 is the number used to access the Service Provider sectionfor mobile phones. Choose the digits and symbols using the “ ” and“ ” arrows. After the digit is set, move to the left or right with the “ ”and “ ” keys. Do not press the “OK” button until the command hasbeen entered in its entirety.SMS Provider Gateway Access Number (SMSC2)The SMSC2 is the number used to access the E-mail gatewaytelephone number of the SMS Service Provider. Choose the digits andsymbols using the “ ” and “ ” arrows. After the digit is set, move tothe left or right with the “ ” and “ ” keys. Do not press the “OK” buttonuntil the command has been entered in its entirety. This number might be the same as used inSMSC1.Destination Address (DA1, DA2, DA3)Enter the mobile telephone number or the Service Provider e-mailGateway code in this window. The number entered here can beaccessed by a GSM/SMS Function Block in the user program whentrying to send an SMS message.

Choose the digits and symbols using the “ ” and “ ” arrows. After the digit is set, move to theleft or right with the “ ” and “ ” keys. Do not press the “OK” button until the command hasbeen entered in its entirety.

Three destination mobile telephone numbers can be entered, one in each DA address.Alternately, two mobile phone numbers and one e-mail gateway access code can be entered.Only one e-mail Gateway access code needs to be entered and then the individual e-mailaddresses can be entered separately in each GSM/SMS Function Block.

Validity PeriodThe Validity Period is a request to the SMS Service Provider to keepthe message on their Server for a length of time. Each ServiceProvider may have their own policies with regard to this time period.Please check the details with your local Service Provider.

Use the “+” and “-” keys to change the value within the range of 5 minutes to 63 weeks.

S e t SMSMS 1

SC

SMS 2CDA 1DA 2DA 3VP

S e t SMSMS 1

SC

0 1

[ ]9 + - ) 0 3( 1 2

S e t SMSSMSC 2

10

[ ]9 + - ) 0 3( 1 2

S e t SMSDA 1

10

[ ]9 + - ) 0 3( 1 2

VS e t SMS

P. 0 h2 4 r s

2 - 19


2.5.5 GSM Status

Check the status of the GSM communication in the followingcategories.

Status The status is given in hexadecimal numbers, convert to binarynumbers to check against the Status Table shown in Section **. Errorcodes are provided in Chapter 4. CME ErrorThis CME Error status gives information to the functioning of MobileEquipment (ME), please refer to the GSM modem manual for moredetails. Reference error Tables are located in Chapter 4 of this manual.

CMS ErrorThis value gives error information relevant to the Mobile Equipment(ME) or Network, please refer to the GSM modem manual for moredetails. Reference error Tables are located in Chapter 4 of thismanual.

Signal Strength (Sigstreng)Check the signal strength of the GSM modem signal.

Table 2.6: Signal Strength Reference Table

Value% Receiving Level

0 -113 dBm or less

3 -111 dBm

6~96 -109 to -53 dBm

100 -51 dBm or greater

GSM S t

CME

a t u sS t a t u s

E r r o rCMS E r r o rS i g t r e n gS

GSM S t ta suS t ta su

0 00 H0

GSM S t ta suCME rE

1-r o r

GSM S t ta suCMS rE

1-r o r

S i g S t r e0

GSM S t ta sun g

%

2 - 20


2.6 Characters in GSM Protocol

The following table gives the characters available for GSM/SMS communication as defined byGSM standard 03.38. The code numbers are for reference only and do not need to be enteredby the User. The α2 controller supports more characters than appear in the GSM protocol.Tables are given for each language to show the unsupported characters and how they willappear if used in a GSM message. Languages where all characters are supported do not haveGSM character transposition tables.

2.6.1 The GSM Character Table

The Table below gives the characters that can be sent by the α2 controller in a GSM message.

Table 2.7: GSM 03.38 Default Alphabet

Number (Hex) 0 1 2 3 4 5 6 7

0 @ ∆ SP 0 ¡ P ¿ p

1 £ _ ! 1 A Q a q

2 $ Φ “ 2 B R b r

3 ¥ Γ # 3 C S c s

4 è Λ ¤ 4 D T d t

5 é Ω % 5 E U e u

6 ù Π & 6 F V f v

7 ì Ψ ‘ 7 G W g w

8 ò Σ ( 8 H X h x

9 Ç Θ ) 9 I Y i y

A LF Ξ * : J Z j z

B Ø 1) + ; K Ä k ä

C ø Æ , < L Ö l ö

D CR æ - = M Ñ m ñ

E Å ß . > N Ü n ü

F å É / ? O § o à

2 - 21


2.6.2 French GSM Characters

The following table shows the unsupported French characters in the GSM protocol and howthose characters will appear in a GSM message.

2.6.3 Italian GSM Characters

The following table shows the unsupported Italian characters in the GSM protocol and howthose characters will appear in a GSM message.

Table 2.8: French Characters in GSM Protocol

Character Type Display Character

α2 Character â ê î ô û ë ï ç

GSM Character a e i o u e i c

Table 2.9: Italian Characters in GSM Protocol

Character Type Display Character

α2 Character á í ó ú

GSM Character à ì ò ù

2 - 22


2.7 AL-VLS/WIN-E Program Example

2.7.1 SMS Function Block Example

Table 2.10: GSM Function Block

Note:*1 If a number of SMS Function Blocks have been used in one program the user must take

care when calculating the message sending order. The first message to be sent dependson the first input signal turning ON. Thus, if other messages are waiting to be sent they arethen placed in a waiting queue. However, since the waiting queue is scan dependant, ifafter one scan the controller has failed to send the first message due to a busy line, thus,the following message order is no longer dependant on input signals turning ON but issolely dependant on the Function Block order.

Function Set Item Description

I Input pin for GSM/SMS function block operation

FB

1) Detects the high status of an input and subsequently sends theSMS message to the predefined user destination.

2) The SMS message will continue to send regardless of the inputswitching to a low state.

3) The incoming high input will be ignored: a) During a SMS message transmission b) During the waiting period.

4) Communication failure (e.g. busy line) will tell the SMS functionblock to retry on two further occasions in a period of two minutes.

5)On the third retry the output status will switch to ON and an errormessage generated through the word pin of the function block.

6) The user may experience incorrect validity period timings. Pleasecheck with your Service Provider.

7) If both the Mobile (SMSC1) and Gateway (SMSC2) numbers areentered the α2 controller will automatically choose the correct pathnumber for the SMS in conjunction with the destination chosen. Thedestination being either to a mobile phone or an email address.

Output

1) The output status will set ON: a) In succeeding in sending a SMS message b) In failing to send a SMS message after three retries.

2) If more than one SMS function block exists on the program, a FIFO (First In First Out) sequence is performed. *1

3) The following items are available for other function blocks: a) Current Status

Table 2.11: Abbreviated termsTerm Description

I SMS Function Block Input pin

O SMS Function Block Output pin

W SMS Function Block Word Output pin

IW

O

2 - 23


Timing chart for the SMS function block

VLS program example for the SMS function block

FB Function Block

SMS Short Message Service

Table 2.11: Abbreviated terms

SMS Message

Output pin

*SMSMessage

Input pin

SMSMessage

* *

1 scan time

Transmission request is ignoredwhile sending SMS Message.

I01

I02

SendRequest

Stop Retry

PL

SR FL

O01

O02

O03

OR

Resetpriority

From Offto On

123

• Output: Continous• On time: 120.1s (1201 × 100ms)• Off time: 0.1s (1 × 100ms)

SMS

CP

Completed

Current status=1(Bit 0=ON)

4≤Current status≤7(Bit 2=ON)

8≤Current status≤15(Bit 3=ON)

Current status≥16(Bit 4 = ON)

ZC

ZC

CP

CP

Current status=2(Bit 1=ON)

O04

O06

O05OR

123

S

R

2 - 24


2 - 25


2.7.2 SMR Function Block Example

Table 2.12: SMR Function Block


E Bit input pin for the function block operation

FB

1) Cmnd String(Cmmand String)In case of Word output mode, only one command text can be setup. In case of Bit output mode, a command text for switching bit outputON and a command text for switching bit output OFF can be setup.

2)SM Age(Short Massage age)Setup maximum age of received short message. a) 5 to 720minutes(Unit:5minutes) b) 12.5 to 24Hours(Unit:30minutes) c) 2 to 30day(Unit:1day) d) 5 to 63week(Unit:1week)

3) Phone NumberSetup short message senders phone number.By setting the phone number in FB parameter, only the Shor tMessage Entity(SME) with the setup phone number can manipulate aSMR FB.Up to 28 characters,including “+ , - * 0 1 2 3 4 5 6 7 8 9 “.

Asterix Character in phone numberThe asterix character '*' can be used to terminate phone number orcan be stand-alone. It takes place for any combination of numbers. Using the '*', one SMRFB can switch for a group of phone numbers.(See Table 2.14)

4) PasswordSetup authentication password (4 digit code). The password iscommon for all SMR FB and stored in Programm Parameter area.

5) AcknowledgeIf this parameter is set and the FB output was manipulated by SM, aacknowledge message is send back to the sender.(See Table 2.15)

6) RetentionIf this flag is set, the SMR FB keeps it's output states at the time ofcontroller power down.

7) Upper Limit (Word output mode)In case the transmitted value is bigger than the max. value, max.value becomes active. Max. Value can be [(min.value + 1)...32767].

8) Lower Limit (Word output mode)In case the transmitted value is smaller than the min. value, min.value becomes active. Min. Value can be [-32768...(max. value - 1)]

E

R

O

W

2 - 26




R Reset pin for the function block

Output

The SMR FB can be operated in one of two different modes.

1) Bit output.a) The output is set ON, when the switch ON command is found in the received short message.b) The output is set OFF, when the switch OFF command is found in the short message. c) When R ON, the bit output is reset (OFF). R takes priority over E. When E is OFF the bit output value is hold.

2) Word output.a) Word output for transferred values. The output is set to the transmitted value, when the set word output command is found and the value after “=” is valid.b) When R is ON, the word output is set to zero. When E is OFF, the word output is hold. R takes priority over E.

Term Description

E SMR Function Block Input pin

R SMR Function Block Reset pin

O SMR Function Block Output pin

W SMR Function Block Word Output pin

FB Function Block

SMS Short Message Service


+49 21 02 12 34 56 7 +49 21 02 12 34 56 7 changed

+49 21 02 12 34 56 7 +49 21 02 12 34 56 8 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 56 78 no change

+49 21 02 12 34 56 7* +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 * +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 8 changed

+49 21 02 12 3* +49 21 02 12 34 56 78 changed




2 - 27


Report short message handling

Table 2.15:Acknowledge messages

Application Example: Switch an irrigation system by SMA system for plant irrigation can be switched ON and OFF by short message (B10). The startof irrigation can be delayed. The delay time (in minutes) is transferred by short message. Alsothe duration of irrigation can be set by short message.

Condition Transmitted Short Message

α2 in Run Mode, all commands of SM successfully processed "OK"

α2 in Run Mode, some commands in SM were erroneous. "Error"

α2 in Run Mode, Sender of SM has no authorization "No access"

α2 in Run Mode, Password Protection Set, Password invalid or not Set "No access"

GSMModem α2

New Short Messagereceived,stored in memory

Request ShortMessage

Transfer ShortMessage

Transfer report SM.See Message Table

Check Password

Check Commands

ShortMessage

ShortMessage

Erase SM

2 - 28


2.7.3 CD Function Block Example

Table 2.16: CD Function Block




E Bit input pin for the function block operation

FB

1) RetentionIf this flag is set, the CD FB keeps it's output state at the time ofcontroller power down.

2) Phone NumberSetup short message senders phone number.By setting the phone number in FB parameter, only the SME with thesetup phone number can manipulate a SMR FB.Up to 28 characters,including “+ , - * 0 1 2 3 4 5 6 7 8 9 “.

Asterix Character in phone numberThe asterix character '*' can be used to terminate phone number orcan be stand-alone. It takes place for any combination of numbers. Using the '*', one CDFB can switch for a group of phone numbers.(See Table 2.18)

3) Number of RING Setup number of RING before call detection(Program Parameter,common for all CD FBs)Range:1 to 20

R Reset pin for the function block

Output

The output is set ON, when the caller's number is equal to the storedphone number and E is ON. The output state is hold, when E is OFF, and it is reset (set OFF),when R input is ON.

Term Description

E CD Function Block Input pin

R CD Function Block Reset pin

O SMR Function Block Output pin

FB Function Block


+49 21 02 12 34 56 7 +49 21 02 12 34 56 7 changed

+49 21 02 12 34 56 7 +49 21 02 12 34 56 8 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 no change

+49 21 02 12 34 56 7 +49 21 02 12 34 56 78 no change

+49 21 02 12 34 56 7* +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 +49 21 02 12 34 56 7 no change

+49 21 02 12 34 56 * +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 7 changed

+49 21 02 12 3* +49 21 02 12 34 56 8 changed

+49 21 02 12 3* +49 21 02 12 34 56 78 changed



E

RO

2 - 29


Application Example: Open roller shutter by phone callA roller shutter gates the entrance to a company field. Normally pedestrians only can pass thisgate. Four employees need to pass the gate with a company car. These employees can openthe gate by simply calling a phone number with their cell-phone. Opening the gate by phone call is enabled only during normal workdays and business times(Time Switch). Outside the business times the company owner can enable the function for afixed time to give an employee the chance to open the gate.

2 - 30

α2 Simple Application Controllers Remote Access 3

3. Remote Access

The settings required to send SMS packets via a GSM modem or to set up the α2 controller forremote access can be accomplished with the front panel keys. It is possible to perform remoteoperations with a standard modem but it is not possible to send SMS packets.

Certain parameters in the α2 controller and GSM modem must be set in order to performRemote Access from an external PC. These parameters can be set quickly and easily in theVLS software or with slightly more effort from the front panel keys. The equipment and configuration for this style of communication is listed in section 1.1 of thismanual.

3.1 GSM Remote Access

3.1.1 Set Parameters from the VLS software

The Visual Logic Software (VLS) provides the easiest method toset the parameters and download them to the controller. Thecommunication method is the first setting necessary in the VLSsoftware. Open or start a new program and then choose “Option” on themenu bar. Click “GSM and Serial Communication” to open thedialog box necessary to begin parameter input.

3 - 1



The “GSM and Serial Communication” dialog box is used to set the equipment andcommunication type for the controller. A short explanation of each parameter is given below.

In order to obtain remote access using a GSM modem, the GSM circle must be clicked, theRemote Access box checked, and the GSM Pin Code entered.

A) GSM - This setting is used when a GSM modem will be connected either to send an SMSmessage or for Remote Access communication. B) Pin Code - The GSM PIN (Personal Identification Numbers for use of GSM)C) Pin Code with the quotation mark - GSM SIM PIN is send to the modem in quotationmarks (necessary for Sony Ericsson GSM modem)D) Remote Access - Setting to allow GSM modems to have Remote Access capability.E) Initialize Modem - AT Command used to initialize a modem. F) Data Format - Settings for Com ports and message protocol. G) Registered GSM Modems - List of available GSM modems for the user to choose from, however, this list can be extended by writing to the GSM.ini file.

Refer to the section 2.1 for further detailed information concerning VLS settings for remoteaccess using GSM.

A)

F)

(E

(B

(C

(G

(D

3 - 2


3.1.3 GSM Modem Settings

The numerous parameters and options for using the GSM modem canbe set using the front panel keys although this procedure issignificantly more difficult than using the AL-PCS/WIN-E software.

To begin the process from the Top Menu, scroll down to “Others/SerialCom/GSM” and view the options shown at right.

Comformat (Communication Format)Upon entering the GSM option, the ComFormat dialog will be the firstoption. The Comformat allows the user to set the communicationsettings for Data Length, Parity, Stop Bit, and Baudrate.

Scroll to the setting to be adjusted.

Data Length Select a Data length send parameter of 7 or 8 bits.

ParitySelect from three options for Parity - None, Odd or Even.

Stop BitsChoose the number of stop bits - 1 bit or 2 bits.

Baud RateSelect the baud rate - 9600 or 19200 bps.

DefaultThe controller can be returned to the default communication settings -DataLength = 8 bits; Parity = None; Stop Bits = 1; and Baud Rate = 9600 bps - by pressing“OK” when the pointer is on the Default option.

3.1.4 The GSM Init Command (GSM Initialization Command)

The GSM modem must have an initialization command string. Afterchoosing the “GSM Init” option, the Command and Delay Time settingswill appear.


G S MO t h e r

M o d e m

m

C o m

GSMC omF o r ma tGSM I n i tGSM R emoP I N C o d eS e t SMS

t e

GSM S t a t u s




7 b i t s

P a r i t yN o n

E v eOd d

e

n

S t o p b t1 b i

it

2 b i t s


t0 s

4 8 0 b p s09 6 0 b p s0

GSM I i tnC omma n dD e l a y T i me

3 - 3


3.1.5 Command Setting

Choose “Command” to enter the AT command. Details for the ATcommand should be included in the literature of the modem. Enter the string by choosing the characters with the “ ” and “ ”arrows. When a desired letter is shown onscreen, move to the right by pressing the “ ” key.The character will remain in the previous cursor space. Do not press the “OK” key until thecommand has been entered in its entirety.


3.1.6 Delay Time

The Delay Time Setting will delay the transmission of the initializationcommand while the modem completes its power up. Use the “+” key to increment the value and the “-” to decrement thevalue within the range of 0 - 10 seconds. Enter the value by pressingthe “OK” key.

3.1.7 GSM Remote Command

Remote access from a computer running the VLS software is allowedwhen “Permit” is chosen. SMS packets cannot be sent under the “Permit” setting but can be sentwhen “Forbid” is used.

3.1.8 The PIN Code

Enter the PIN Code It is necessary to enter a PIN code received from the Service Providerwhen the α2 controller is used to send SMS packets. Use the “+” and“-” keys to choose the digits of the code and the “ ” and “ ” keys tomove to adjoining digits. SIM PIN setup [“****”] or [****] can be activated and deactivated by the cursor and cursor soft key.

All the numbers must be set to an integer value or a PIN Code Error will be received. Press the“OK” or “ESC” key to return to the PIN Code entry display. Finish entering all integer valuesinto all four digits and press “OK” to enter the code.

Cancel the PIN CodeTo Cancel an existing PIN code, enter the PIN Code option and confirmwith the “OK” button the intent to Cancel the code. The PIN Code doesnot have to be entered in order to Cancel the code.

Use the “ESC” button to return to the GSM menu.

GSMC omma n d[ A ]= > ? ABCDE

I n i t 0 1

< @

GSM I n i tD e l a y T i me

0 s

F b i dGSM R emo t e

o rP m i te r

P I N C o eS e t p

[ ∗

du

∗ ∗ ∗ ]

P I N C o eC a n e

dc l

O K o r E S C

3 - 4


3.2 Standard Modem Remote Access

Certain parameters in the α2 controller and standard modems must be set in order to performRemote Access from an external PC. These parameters can be set quickly and easily in theVLS software or with slightly more effort from the front panel keys. The equipment and configuration for this style of communication is listed in section 1.2 of thismanual.

Cautions for the use of both Call Detec and remote access- When it remotely accesses from the same telephone number for Call Detect, CD and FB operate.Cautions for misoperations- CD FB operates also by a misoperation of a telephone.

In order to avoid serious injury and the machine damage caused by unintended CD FBoperation, provide safety devices as countermeasure.

3.3 Set Parameters from VLS software

The Visual Logic Software (VLS) provides the easiest method toset the parameters and download them to the controller. Thecommunication method is the first setting necessary in the VLSsoftware. Open or start a new program and then choose “Option” on themenu bar. Click “GSM and Serial Communication” to open thedialog box necessary to begin parameter input.

3 - 5



The “GSM and Serial Communication” dialog box is used to set the equipment andcommunication type for the controller. A short explanation of each parameter is given below.

In order to perform Remote Access using a Standard modem, click the Modem circle. Thesettings for Pin Code, Remote Access, and Data Format cannot be accessed when theModem circle is selected.

A) Modem - This setting is used when a standard modem will be connected to the α2 for usein Remote Access. B) Modem selection - Select from the default modem stored in the Modem.ini file. C) Initialize Modem - AT Command used to initialize a modem.

Refer to section 2.1 for further detailed information concerning VLS settings for remote accessusing standard modems.

A) (B

(C

3 - 6


3.3.2 Standard Modem Settings

A standard modem can setup from the front panel keys but must be accessed from the VLSsoftware package. Once the Modem option is entered, only two settings are required - theAT command and the power On Delay setting. This is enough informa-tion to initialize the modem connected to the α2 upon powerup

In the Top Menu, scroll down to the “Others/Serial Com/Modem” optionand Press “OK”.

3.3.3 The Command Setting

The modem option contains the “Command” and the “Delay Time”setting. Choose “Command” to input the AT command. Details for theAT command should be included in the literature of the modem. Foradditional reference information, please see section 2.3 of this manual.

Enter the command by choosing the characters with the “ ” and “ ”arrows. When the desired letter is shown on screen, move to the right“ ” to add the next character. Do not press the “OK” key until thecommand has been entered in its entirety.


3.3.4 The Delay Time Setting

The Delay Time parameter will delay the transmission of theinitialization command while the modem completes its power up.

Use the “+” key to increment the value and the “-” to decrement thevalue within the range of 0 - 10 seconds. Enter the value by pressingthe “OK” key.


G S MO t h e r

M o d e m

m

C o m

Mo d em I i tC om a n dD e l a y

nm

T i me

Mo d em I i tC om a n d[

nm

]y | ! # $"

0 1

z

M o d e m I i tC o m a n dD e l a y

nm

T i m e

Mo d em I i tnD e l a y T i me

0 s

3 - 7


3.3.5 Standard Preconfigured Modems

Please refer to the Table below for information on the Preconfigured modems available in theα2 controller for standard modems.

AT Command Profile for Standard ModemsPlease refer to the Table below for information on the AT command for Standard Modems.

Combination of the "AT" commandTable 3.3: Combination and action

Table 3.1: Standard Preconfigured Modem Settings

Maker name Model name Modem command (AT command)

3com SP560V-P ATE0Q1&B1&D0&H0&I0&R1&S0S0=2S15=8&W

OMRON ME3314 ATE0S0=2Q1&D0S15=8&R1&H0&W

AIWA PV-AF3360 ATE0S0=2Q1&D0&M5\Q0\J0&W

Table 3.2: AT Command Reference for Standard Modems

Item ContentExample Setting

SP560V-P ME3314 PV-AF3360

Setting of command echo None E0 E0 E0

Call frequency of auto-answering Twice S0=2 S0=2 S0=2

Displayed result code None Q1 Q1 Q1

DTR control Always on &D0 &D0 &D0

DSR control Always on &S0 - -

Communication mode V.42 bis mode S15=8 S15=8 &M5

Speed of terminal fixed dimension Fixed &B1 - \J0

Terminal flow control scheme None - &R1 \Q0

Flow control of transmission data None &H0 &H0 -

Flow control of received data (software)

None &I0 - -

Flow control of received data (RTS control)

None &R1 - -

Writing to nonvolatile memoryWrite to the

nonvolatile memory.&W &W &W

Init string Action

ATE0S0=2&S0;+IPR=9600;+CMEE=1;&W Will be send at once to modem

ATE0S0=2&S0;+IPR=9600;AT+CMEE=1;&WWill be send to modem in 2steps: ATE0S0=2&S0;+IPR=9600 AT+CMEE=1;&W

ATE0S0=2&S0;AT+IPR=9600;AT+CMEE=1;&W

Will be send to modem in 3steps: ATE0S0=2&S0 AT+IPR=9600 AT+CMEE=1;&W

ATE0S0=2&S0;AT+IPR=9600;AT+CMEE=1;AT&W

Will be send to modem in 4 steps: ATE0S0=2&S0 AT+IPR=9600 AT+CMEE=1 AT&W

3 - 8


Note: The 3COM (SP560-V), OMRON (ME3314) and AIWA PV-AF3360 standard modems havebeen used as the default modem for the α2 Series Controller, however, if the user has installeda standard modem of their choice with a different AT command then additional AT commandscan be included.

Having installed VLS to the Program files directory.

C:\Program Files\Alvls\BIN

please choose the Modem.ini file that contains AT information for standard modem selection inVLS.

Contents of the Modem.ini file:; This is Modem.ini File, used to Display Modem Models; and their Initialization commands. This file is used; while Initializing the Controller Modem.;; Please add any new Modem models and Initializing commands; only at the end of the file. An example is given below:;; 1="USRoboticsXXX","AT&F"; Here "1" is serial number in increasing order; "USRoboticsXXX" is modem model; "AT&F" is the initializing command (Max 64 Chars).;[Modem]1="New",""2="3COM SP560V-P","ATE0Q1&B1&D0&H0&I0&R1&S0S0=2S15=8&W"3="OMRON ME3314","ATE0S0=2Q1&D0S15=8&R1&H0&W"4="AIWA PV-AF3360","ATE0S0=2Q1&D0&M5\Q0\J0&W"

Simply follow the instruction listed above, subsequentially, the additional standard modems willbe included with attached AT command string.

3 - 9


MEMO

3 - 10

α2 Simple Application Controllers SMS Messaging Diagnostics 4

4. SMS Messaging Diagnostics

The α2 controller has a number of Diagnostic messages in both the controller and the VLSsoftware.

4.1 Check points for Mobile Phone Communication Problems

4.2 Check points for E-mail Communication Problems

Table 4.1: Check Points for a Mobile Phone SMS Error

Error Check Points

The SMS message hasno t been sen t t o amobile phone

Check that the SMS function block been activated

Check that the wiring connections are properly made

Check that the AT command in the GSM modem is correct

Check that the PIN code has been entered correctly

Check that the SMS Service Center Mobile phone number has beenentered correctly

Check that the destination phone number has been entered correctly

Check that the proper destination has been chosen in the GSM functionblock

Check the GSM Status in the controller or VLS software for errormessages

Table 4.2: Check Points for a E-mail SMS Error

Error Check Points

The SMS message hasnot been sent to an E-mail account

Check that the SMS function block been activated


Check that the AT command in the GSM modem is correct

Check that the PIN code has been entered correctly

Check that the SMS Service Center Gateway phone number has beenentered correctly

Check that the destination e-mail address has been entered correctly

Check that the Gateway destination has been chosen in the GSMfunction block

Check the GSM Status in the controller or VLS software for errormessages

4 - 1


4.3 GSM Status

Check the status of the GSM communication in the followingcategories.

4.3.1 GSM Status

Check the Status of the GSM modem settings and SMS messagetransmissions through the table below.

Note:*1 - This bit is not linked to the Remote Access Setting which only enables remote access. This

bit checks if Remote Access is currently in progress.

Table 4.3: GSM Modem Status

Bit Status On (1) Off (0)

b0 Response from GSM Modem No Yes

b1 Initial successful Yes No

b2 Set Pin Code Yes No

b3 Network Registration failed Registered Not Registered

b4 GSM CME Error. Yes No

b5 GSM CSM Error. Yes No

b6 Remote Access successful *1 Yes No

b7 SMR Receive Time out Yes No

b8-11 Reserved Reserved = 0

b12 SMS is sending or retrying Message No Message

b13 SMS is waiting for sending) Transmitting Off

b14 SMS failed in sending Yes No

b15 SMS failed in sending due to wrong setting Yes No

GSM S t

CME

a t u sS t a t u s

E r r o rCMS E r r o rS i g t r e n gS

GSM S t ta suS t ta su

0 00 H0

4 - 2


4.3.2 CME Error

This CME Error status gives information to the functioning of MobileEquipment (ME), please refer to the GSM modem manual for moredetails.

Table 4.4: Mobile Equipment Error Codes

Value Description Value Description

-1 No Error 17 SIM PIN2 Required

0 Phone Failure 18 SIM PUK2 Required

1 No Connection to Phone 20 Memory Full

2 Phone-Adaptor Link Reserved 21 Invalid Index

3 Operation Not Allowed 22 Not Found

4 Operation Not Supported 23 Memory Failure

5 PH-SIM PIN Required 24 Text String Too Long

10 SIM not inserted 25 Invalid Characters in Text String

11 SIM PIN Required 26 Dial String Too Long

12 SIM PUK Required 27 Invalid Characters in Dial String

13 SIM Failure 30 No Network Service

14 SIM Busy 31 Network Time-out

15 SIM Wrong 100 Unknown

16 Incorrect Password ...256 All other values below 256 are reserved.

GSM S t ta suCME rE

1-r o r

4 - 3


4.3.3 CMS Error

This value gives error information relevant to the Mobile Equipment(ME) or Network, please refer to the GSM modem manual for moredetails.

4.3.4 Signal Strength (Sigstreng)

Check the signal strength of the GSM modem signal. Generally goodoperation is possible with a signal strength of 10% or more.

Table 4.5: Mobile Equipment and Network Error Codes

Value Description Value Description

-1 No Error 315 SIM Wrong

0 - 127 GSM 04.11 Annex E-2 Values 316 SIM PUK Required

128 - 256 GSM 03.40 Subclause 9.2.3.22values 317 SIM PIN2 Required

300 ME Failure 318 SIM PUK2 Required

301 SMS Service of ME reserved 320 Memory Failure

302 Operation Not Allowed 321 Invalid Memory Index

303 Operation Not Supported 322 Memory Full

304 Invalid PDU Mode Parameter 330 SMSC Address Unknown

305 Invalid Text Mode Parameter 331 No Network Service

310 SIM not Inserted 332 Network Time-out

311 SIM PIN Required 340 No +CNMA acknowledgement expected

312 PH-SIM PIN Required 500 Unknown Error

313 SIM Failure ... 511 Unused Values in the range from 256 to 511are Reserved.

314 SIM Busy 512 (+) Manufacturer Specific

Table 4.6: Signal Strength Reference Table

Value % Receiving Level

0 -113 dBm or less

3 -111 dBm

6~96 -109 to -53 dBm

100 -51 dBm or greater

GSM S t ta suCMS rE

1-r o r

S i g S t r e0

GSM S t ta sun g

%

4 - 4


Note1 ) During GSM communication, the RS-232C pins 4 and 7 must be set high otherwise no

data will transferred and the GSM modem will appear to hang or experience a state ofsuspension.

2 ) The α2 Series Controller and GSM modem must be powered ON simultaneously.

3 ) Having configured the GSM communication settings before operation, when the α2 SeriesController and GSM modem are on-line, then the user must not change any settings fromVLS or the front panel keys. If such modifications have been made to the GSM communi-cation settings, thus, the α2 Series Controller will stop communication with the GSMmodem.

4 ) The power to the α2 Series Controller must be cycled to accept the initial communicationsettings. If modifications have been made to the communication settings, then pleasecycle the power again.

5 ) Please check with your service provider concerning the @ symbol within an E-mailaddress. The @ symbol can be replaced with a ! symbol if the user experiences somedifficulties with sending E-mail messages from the α2 Series Controller.

6 ) The Validity period of SMS messages is specified from the GSM function block or from thefront panel keys, however, if a certain time period is entered the user should not alwaysexpect the same duration as the Service Provider can delete the message from theirserver without notice.

4 - 5


MEMO

4 - 6

α2 Simple Application Controllers Computer Link - Dedicated Protocol 5

5. Computer Link - Dedicated Protocol

The α2 Series Controller can transfer data To/From a personal computer, HMI, or other

peripheral equipment via Dedicated Protocol. The structure of the α2 Series computer linkprotocol is based upon 8-bit binary interpretation and not an ASCII coded string.

5.1 Data Flow by Link

The computer reads data from the α2 Series Controller

OS

CommunicationProgram

(1) (10)

α2 Controller

OSDeviceMemory

(6)

(4)FBD RS-232

(7)(5)Read

Data

(2)

(9)

(3)

(8)

RS-232Cross cable

AL2-GSM-CABComputer

(1) Request CommandSTX

(2) RS-232 Cross Cable Connection

(3) AL2-GSM-CAB Cable Connection

(4) α2 Controller RS-232 Interface

(5) Operating System → Device MemoryRead

(6) Device Memory → Operating SystemData




(10) Response DataETX

5 - 1


The computer writes data to the α2 Series Controller

The 8-bit binary computer link string is sent from peripheral equipment to the α2 SeriesController using a combination of a AL2-GSM-CAB and user-made cross-cable. The Transmitmessage consists of either Format A or Format B. Refer to section 5.3 for further outlineinformation. The reply generated from the α2 Series Controller informs the user of the statusof the communication line, erroneous messages, status of function block bit data, status offunction block word data and the status of the Time Switch settings.

Accessible devices include: System Bits, Input/Output Terminals, Key Inputs, Link Inputs/Outputs, Analog Inputs and Control (N) bits. Additional parameters must be entered forinformation exchange with Function Block data (Bit or Word) to be enabled.

OS

CommunicationProgram

(1) (9)

α2 Controller

OSDeviceMemory

(4)FBD RS-232

(6)(5)Write

(2)

(8)

(3)

(7)

RS-232Cross cable

Al2-GSM-CABComputer

(1) Request CommandSTX




(5) Operating System → Device MemoryWrite




(9) Acknowledge Command

5 - 2


5.2 Configuration Diagram

The Peripheral equipment acts as the Master in all configurations, hence, messages are neverinitiated from the α2 Series Controller. This configuration involves a personal computer acting

as the Master and the α2 Series Controller the slave unit.

Currently the α2 Series Controller contains an RS-232C interface, thus, only 1:1communication is available.

5.2.1 Cross-Cable Diagram

The pinouts and connector types for the RS-232C cross cable are shown in the figure below.Both the connectors and the wiring are equivalent so that either side can be connected to theAL2-GSM-CAB or the peripheral device.

Note:The 4 and 7 signals must be set to high-level on the personal computer side. If these signalsare not set, the personal computer will to communicate with the α2 Series Controller.

Table 5.1: Configuration Table

No. Description

1 α2 Series Controller

2 AL2-GSM-CAB

3 RS-232C Cross Cable

4 PC or other peripheral equipment

OUT1

OK

-

+

ESC

OUT3 9

RELAY OUTPUT 6 5

OUT 8

OUT2 OUT4 7

DC INPUT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 (B) (A) + -

24V DC POWER

AL2-24MR-D

(9-pin D-Sub female) (9-pin D-Sub female)

2

3

8

7

6

5

4

3

2

7

8

4

5

6

5 - 3


5.3 How to read Dedicated Protocol

Format A for computer link is used for checking the communication line between the computerand the α2 Series Controller. Thus, the read/write format for the structure of the string isidentical. Refer to section 7.1 for detailed 8-bit binary string structure.

Format A: Communication Line Check

Format B for computer link is generally used for reading/writing to all internal devices, reading/writing to function block bit/word data, run/stop mode and configuring the Time Switch settings.Thus, the command string is more complex compared to the Format A equilvalent.Refer tosection 8.3 for detailed 8-bit binary string structure.

Format B: Computer READS from the α2 Series Controller

Format B: Computer WRITES to the α2 Series Control

Format B: Computer RUN/STOP operation for the α2 Series Controller

STX

ENQComputer

α2 Controller STX

ACK

Computer

α2 Controller

Com

plet

efla

g

STX

ETX

STX

STX

ETX

Computer

α2 Controller

Com

plet

efla

g

STX

ETX

STX

STX

ACK

Computer

α2 Controller

Com

plet

efla

g

STX

ETX

STX

STX

ACK

5 - 4

α2 Simple Application Controllers AL-VLS/WIN-E Settings for Dedicated Protocol 6

6. AL-VLS/WIN-E Settings for Dedicated Protocol

The personal computer and α2 Series Controller acts as a master slave relationshipaccordingly. Therefore, all communication starts from the computer side (master) and cannotbe started from the α2 Series Controller side (slave). The following chapter will outline the nec-essary AL-VLS/WIN-E (version 2.00 or above) required settings for Dedicated Protocol.

6.1 GSM and Serial Communication Setting

1 ) Open a new or existing file for the α2 Series Controller. 2 ) From the Option menu select the “GSM and Serial Communication.” option.

(1) Select Project (new or existing)

(2) Set Default Communication Settings

(3) Set Bit data for function blocks

(4) Set Word data for function blocks

(5) Download project

(6) Cycle power

6 - 1


3 ) Choose “Other”. Thus, enabling dedicated protocol communication between the computerand the α2 Series Controller. Click the “OK” button to accept.

D) Other - This setting is used for Dedicated Protocol communication.H) Data Format - Settings for Com ports and message protocol. From selecting the “Other” option, AL-VLS/WIN-E automatically sets the default communica-tion settings between the personal computer and the α2 Series Controller.

Note:AL-VLS/WIN-E Version 2.00 or above is necessary for dedicated protocol functionality.

Table 6.1: Default Communication settings

Parameter Communication Setting

Data Bit 8

Parity None

Stop Bit 1

Baud Rate 9600

A)

B)

6 - 2


4 ) From the Option menu select the “Dedicated Communication.” option.

5 ) The Dedicated Communication dialog box will appear.

A) Station NumberSet the Station Number of the controller from 0 to 15. The default station is 0. Communicationis possible to a single α2 Controller when sending messages via RS-232. A networked α2may have a station number higher than 0. Setting range: 0 - 15

A)

B)

C)

D)

6 - 3


B) Communication MemoryThe Communication Memory option allocates a section of the user-program memory forCommunication Bit Devices or Communication Word Devices.

A maximum of 100 Function Block Bit Devices and 100 Function Block Words can beaccessed. Total memory available to the user is 5000bytes with a 200 function block limit.

C) Communication Function Block Bit Device

To Set a Communication Bit Device choose a number in the right hand “Communication BitDevice” block, then highlight the Function Block in the “FB to be Specified” box. Click on the“Set” button to match the Function Block to the data transmission address.

To release a Function Block, highlight the Function Block line in the right hand box and thenpress the “Release” button. The Communication Bit Device Number will be cleared.

The transmit data will show whether the Function Block output signal is On or Off. Function Blocks without outputs will not appear in the display.

Note: No device can be chosen if the Communication Memory is specified as 0.

Table 6.2: Communication Memory usage

CommunicationBit Device

Communication Word Device Memory Usage (bytes)

0 0 0

50 50 300

100 100 600

6 - 4


D) Communication Function Block Word Device

To set a Communication Word Device choose a number in the right hand “CommunicationWord Device” block, then highlight the Function Block in the “FB Word Output parameter to bespecified” box. Click on the “Set” button to match the Function Block to the data transmissionaddress.

To release a Communication Word Device, highlight the Parameter line in the right hand boxand then press the “Release” button. The Communication Word Device will be cleared.

The transmit data will show the word value of the parameter chosen.

Function Block without Word parameters will not appear in the display.

Note: No devices can be chosen if the Communication Memory is specified as 0.

After the parameters are entered, the program must be downloaded to the controller and thepower cycled before the Dedicated Protocol can be used. Cycling the power saves the settingsinto the α2 internal EEPROM memory. Please cycle the power whenever the communicationmethod (Not Use, Modem, GSM, Other) is changed.

6 - 5


6.2 Function Blocks

FB Name FB Symbol Description of Function Block Word Device Bit Device

Boolean[BL]

The Boolean Function Block uses Booleanalgebra to control the ON/OFF state of anoutput. An operational expression consistsof either the AND, OR, NOR, XOR or NOTform.

-

Set/Reset[SR]

The Set/Reset Function Block either holdsan output ON (set) or releases the outputOFF (reset.) Priority can be given to eitherinput pin if both inputs have been energisedsimultaneously. The default priority settingis dedicated to the reset input pin.

-

Pulse[PL]

The Pulse Function Block sends a singlepulse to the output pin if the input pinreceives either an “ON to OFF”, “OFF toON” or “ON to OFF And OFF to ON” inputoperation.

-

Alternate[AL]

The Alternate Function Block is used toreverse the ON and OFF state of the outputas and when the input pin receives a signal.The output will be set ON when the inputpin goes high and remain ON until the inputreceives the second rising edge.

-

Delay[DL]

The Delay Function Block provides an ONdelay timer and an OFF delay timer. Timeintervals for either situation can be set. Thetime unit can be set to 10ms, 100ms or 1sincrements.

Set ON DelayCurrent ON DelaySet OFF DelayCurrent OFF Delay

One Shot[OS]

The One Shot Function Block awaits asignal supplied to the input pin thereaftersetting the output according to the specifiedtime. The timing parameters control thestate of the output (depending on thepriority setting). The time unit can be set to10ms, 100ms or 1s increments.

Set One ShotCurrent One Shot

Flicker[FL]

The Flicker Function Block changes the ONand OFF state of the output according to apreset flicker time. The time unit can be setto 10ms, 100ms or 1s increments.

Cycle or TimeCurrent Cycle or TimeON FlickerCurrent ON FlickerOFF FlickerCurrent OFF Flicker

Time Switch

[TS]

The Time Switch Function Block uses apredefined time schedule to control the ONand OFF status of the output.

*1

0 001

LB

O234

P

0 00

RS

OSR

P

0 00

LP

OI P

0 00

LA

OIC

0 00

LD

OIC

P

0 00

SO

OIC

P

0 00

LF

OI P

0 00

ST

OP

6 - 6


Time Switch m

[TSm]

The Time Switch maintenance FunctionBlock uses a predefined time schedule tocontrol the ON and OFF status of theoutput. The function block can be setupfrom the TopMenu “Parameter” via the frontpanel keys.

*1

Counter[CN]

The Counter Function Block increments thecurrent value by one as and when the inputpin receives a signal. When the currentvalue reaches the set value the output is setON. The counter current value is reset asand when the clear pin receives an input.

CountCurrent Count

U/D Counter

[UD]

The Up/Down Function block positively ornegatively increments the counter until aset value is reached thereby setting theoutput ON. A preset signal can also equalthe set value regardless of the current valuefor the function block and thereby settingthe output ON.

Up/Down CountCurrent Up/Down Count

Compare[CP]

The Compare Function Block monitors thecurrent value of the input pin in relation to apreset expression. The expression consistsof =,>,>=,<,<= or <>. If the compared valuesatisfies the expression subsequently theoutput pin is set on.

-

Analog Ouput [AO]

The Analog Output function takes a digitalvalue input and delivers a correspondinganalog voltage or current to a selectedchannel on the AL2-2DA module.

Offset Gain[OG]

The Offset Gain Function Block is basedupon a linear function Y=A/B∗X+C to whichthe value obtained from an analog input(X:A01-A08) is set.

Gain Analog Value -

Display[DP]

The Display Function Block is used as aninterface between the user and the devicesheld within the controller. Current values,timer messages, user-defined messagescan be read.

- -

Zone Compare

[ZC]

The Zone Compare Func t ion B lockidentifies whether the input value lies withina specified upper and lower limited zonalarea and if so changes the status of theoutput accordingly.

-

Schmitt Trigger

[ST]

The Schmi t t Tr igger Funct ion B lockcompares an input value to preset high andlow limits. The output is ON when the inputvalue reaches the high limit and then fallsbelow the lower limit. The function onlyprocesses the data when the function blockis receiving an input signal.

-


000

TS m

OP

0 00

NC

OIC

P

0 00U

DU

ODCP

P

0 00

PC

OI P

0 00

OA

M PE

0 00

GO

I P

0 00

PD

I P

0 00

CZ

OI P

0 00

TS

OI P

6 - 7


Hour Meter[HM]

The Hour Meter Function Block holds theoutput status ON for a maximum of 32767hours, 32767 minutes and 59 seconds. Ifthe input pin is turned OFF the elapsedtime will hold its value until either the clearpin resets the time or the input pin is turnedON again.

Set HourCurrent HourSet MinuteCurrent Minute

Speed Detect[SPD]

The Speed Detect Function Block is used tocount the incoming pulses max. 20Hz (withan extension module max. of 1kHz) for aset period of time. The upper and lower lim-its can be set from -32768 to +32767 andthe Period interval’s set range is 1 to 32767in 10ms increments.

Current PeriodSpeedPeriod

PWM[PWM]

The Pulse Width Modulation Function Blockchanges the output status according to aset period of time with a minimum of 100msand a max imum o f 3276700ms inincrements of 100ms. The percentage dutyfor the function controls the amount ofelapsed time before the output status ischanged.

Current PeriodPeriod

PID[PID]

The P ID Func t ion B lock is the AL2implementation of PID, a method used toobtain stable control over a system variable.It is equipped with an Auto-tuning function,which automatically adjusts the FunctionBlock parameters for the specific applica-tion.

Manipulated ValueError Code

Retentive Alternate

[RAL]

The Alternate Function Block is used toreverse the ON and OFF state of the outputas and when the input pin receives a signal.The output will be set ON when the inputpin goes high and remain ON until the inputreceives the second rising edge. When thepower is turned OFF the function block willuse the last alternation operation to controlthe output.

-

Addition[ADD]

The ADD Funct ion B lock is used tosummate two input values Sum

Subtrac-tion

[SUB]

The SUB Function Block is used to subtracttwo input values. Difference

Multiplica-tion

[MUL]

The MUL Function Block is used to multiplytwo input values. Product


0 00

MH

OIC

P

0 00

PS

OUC

I

D

P

0 00

WP

OI

M

P

0 00

IP

OAC

E

D

P

0 00

LA

OIC

R

0 00

DA

OI

D

P

0 00

US

OI

B

P

0 00

UM

OI

L

P

6 - 8


Division[DIV]

The DIV Function Block is used to dividetwo input values.

QuotientRemainder

Calcula-tion

[CAL]

The CAL Function Block is used to performa calculation from the combination ofdifferent Arithmetic function blocks.

Result

Shift[SFT]

This Shift Function Block is used to transferthe Shift Input status just before the Inputsignal is set ON.It has a bit input pin, a shiftinput pin, a set input pin, a reset input pinand a bit output pin.

-

SMS[SMS]

The GSM SMS Function Block sends theLCD screen as a SMS message to either amobile phone handset or an E-mail accountfor remote maintenance purposes.

Current Status

Short Message Receiving

[SMR]

The Shor t Message Receive FunctionBlock searches for the occurrence of acommand in the SM. In case the commandtext is exactly included in the SM, outputsare changed.

Word Output

Short Message Receiving m[SMRm]

The Short Message Receive maintenanceFunction Block searches for the occurrenceof a command in the SM. In case the com-mand text is exactly included in the SM,outputs are changed. The function blockcan be setup from the TopMenu "Parame-ter" via the front panel keys.

Word Output

Call Detect[CD]

The Call Detect Function Block in case thenumbers of digits of both phone numbersand the phone numbers itself are equal, theCD Function Block output is switched on.

-

Call Detect m

[CDm]

The Call Detect Function Block in case thenumbers of digits of both phone numbersand the phone numbers itself are equal, theCD Function Block output is switched on.The function block can be setup from theTopMenu "Parameter" via the front panelkeys.

-

Random One Shot

[ROS]

The Random One Shot Function Blockemits a random length single pulse to theoutput.

Random One ShotCur Random One Shot


0 00

ID

OI

V

P

0 00

AC

OI

L

P

0 00I

TS

OTSR F

0 00

MS

OI

S

P

0 00

S M R

OER

P

0 00

RS

OER

M

P

m

0 00

C D

OER

P

0 00

mC

OER

D

P

0 00

OR

OI

SC

P

6 - 9


Note:1 ) Communication Word Devices will only appear if new settings are created using AL-VLS/

WIN-E. New settings cannot be created using dedicated Protocol, hence, only modificationof time switch settings is possible.

Delayed One Shot

[DOS]

The Delayed One Shot Function Blockemits a single pulse after a controlled delayto the output.

One Shot Current One ShotDelayCurrent Delay

Delayed Alternate

[DAL]

The Delayed Alternate Function Blockalternates the status of the output with eachpulse after a controlled delay.

DelayCurrent Delay

Retentive Set/Reset

[RSR]

The Set/Reset Function Block either holdsan output ON (set) or releases the outputOFF (reset.) Priority can be given to eitherinpu t p in i f bo th i nputs have beenenergised. The default priority setting isdedicated to the reset input pin. When thepower is turned OFF the function block willuse the last set or reset operation to controlthe output.

-

Control Display[ CDP ]

-

The Control Display Function allows theuser to control the LCD image screens. Thefucntion block can only be set in AL-PCS/Win-E software for α Series Control-lers. When control bit N04 in ON, it is possi-ble to control the displayed User Screen.

- -

Connect [ _B ]

The Connect function block is an internaldevice used to show the memory used byinput bits, system bits, AS-interface bits,and the operational keys. No function blockappears on screen or is shown as beingused in the “Memory Configuration Usage”dialog box. The purpose is only to calculatethe memory that is used by the bits listedabove.

- -

System Outputs - Control for external devices through relays

and transistors. - -


0 00

OD

OI

SC

P

0 00

AD

OI

LC

P

0 00

SR

OSR

R

P

00

B_

OI0

6 - 10


6.3 Settings for Dedicated Protocol - Front Panel Keys

The α2 Controller must be set up to use the Dedicated Protocol. The settings can beperformed from the front panel keys or downloaded from the VLS software. The VLS settingsare the simplest and most convenient method to enter the required settings but they can alsotake place from the front panel.

After the settings are changed in the controller, the power MUST be cycled for the DedicatedProtocol settings to take effect.

6.3.1 Top Menu Setting/Serial Com Settings

In the α2 Controller Top Menu, please scroll to the “Others/Serial Com”option shown at right. To use Dedicated Protocol, the “Other Com”setting must be chosen.

6.3.2 The “Other Com” Settings

Parameters for ComFormat, Station No., and Link Block can be set inthis option. These settings provide the complete range of optionsavailable to set with the front panel keys.

6.3.3 The Comformat (Communication Format)

The ComFormat dialog will allow the user to set the communicationsettings for Datalength, Parity, Stop Bit, Baudrate and includes a settingfor default values.

Scroll to the setting to be input or changed.

6.3.4 Data Length

Change the Data Length send parameter to be 7 bits or 8 bits.

Choose 8bits for Dedicated Protocol communication.

6.3.5 Parity

Select from three settings for Parity - None, Odd or Even.

Choose None for Dedicated Protocol communication.

6.3.6 Stop Bits

Choose the number of stop bits - 1 bit or 2 bits.

Choose 1 bit for Dedicated Protocol communication.

6.3.7 Baud Rate

Choose the baudrate from 300, 600, 1200, 2400, 4800, 9600,19200bps

Choose 9600bps for Dedicated Protocol communication.


GSMO t h e r

Mo d em

m

C om

O t h e C oC omF o r ma t

r m

S t a t i o n oNL i n k b l kco




7 b i t s

P a r i t yN o n

E v eOd d

e

n

S t o p b t1 b i

it

2 b i t s


t0 s

4 8 0 b p s09 6 0 b p s0

6 - 11


6.3.8 Default

The default values are DataLength = 8 bits; Parity = None; Stop Bit = 1 bit; and Baud Rate = 9600 bps.

6.3.9 Station Number

Set the Station Number of the controller from 0 to 15. The defaultstation is 0.

Communication is possible to a single α2 Controller when sendingmessages via RS-232. A networked PLC might have a station numberhigher than 0.

6.3.10 Link Block

The Link Block setting specifies the amount of Function Block data thatcan be used in the Dedicated Protocol. The data for the three options isgiven in the table below.

NoteThe user must not change the memory allocation for Communication BIT/WORD device duringthe computer link operation, otherwise, the settings created in the VLS software will bedeleted.

6.3.11 Function Block Bit and Word Data

The Function Block data must be given addresses in memory for the Dedicated Protocolcommand string. The addresses can only be set in the VLS software.

Table 6.3: Link Block SettingsLink

NumberCommunication

Bit DevicesCommunication Word Devices

0 0 0

1 50 50

2 100 100

O t h r CS t a t i

moeo n N o

N o . 0

O t h r C moeL i n l kok b c

2

6 - 12

α2 Simple Application Controllers The Command String 7

7. The Command StringThe following chapter explains the structure of both types of dedicated protocol format for theα2 Series Controller. The 8-bit binary protocol is available in two different formats:

1 ) Format A 2 ) Format B

The Dedicated Protocol is based on a PC or Peripheral device sending messages to the α2controller and in return receiving replies to those commands. The string of data thataccomplishes these tasks is called the Command String. The Command String can be used tocheck the communication line, read/write from/to internal bit/word data, perform remote Run/Stop operation with the controller, and to edit Time Switch data. The data contained in theCommand String varies with the type of action to be accomplished.

Two formats have been designed to carry the data - Format “A” for simple Communication linechecks and Format “B” for the more involved data processing instructions. The information toconstruct and read Command Strings is explained in this chapter.

Communication between the computer and the α2 Series Controller is handled usinginterrupts. The Transmit/Receive process is completed after the last operation has beencompleted in the Function block sequence order. Refer to the Communication Timing sectionfor further information concerning response delay time.

Notes:Communication requirements

a ) Power to the α2 Series Controller

b ) Switching the Serial Com mode to Dedicated Protocol. Using the front panel keys select“Serial Com” from the “others...” menu. Select “Other Com” then proceed to cycle thepower to accept the setting. Or, using AL-VLS/WIN-E please refer to Chapter 6.

Communication Settings

a ) Baud Rate: 9600bps

b ) Datalength: 8bits

c ) Parity: None

d ) Stop bit: 1

e ) Synchronous method: Half-Duplex

f ) Framing, Overrun or communication errors will occur if the default communicationdedicated protocol setting have not been entered. Using the front panel keys, select“Serial Com” from the “others...” menu. Select “Other Com” and adjust the“ComFormat, Station No. and Link Block” accordingly. Refer to Chapter 6 for detailedinformation concerning Front panel screen. However, the user can also set the defaultcommunication dedicated protocol settings from the VLS software.

7 - 1


Section 7.1 and 7.2 describe protocol elements used with Format A and B. Refer to section 7.3for detailed explanation concerning all dedicated protocol elements within both types offormats. Refer to section 7.6 for detailed information concerning α2 Series Commands.

7.1 Format “A”

Table 7.1: 1.1 Format A message structure

Format A LINE CHECK mode

Control Protocol

LIN

E C

HE

CK

FORMAT A

Computer

α2 Controller

or

ENQ

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

STX

ACK

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

STX

NAK

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Err

or C

ode

STX

C ontro l C ode

N o. o f C om m unication bytes

Form at N o.

S tation N o.

C ontro l C ode

7 - 2


7.2 Format “B” MessageTable 7.2: Format B message structure

Control Protocol

RE

AD

Transmit

Receive

WR

ITE

/(R

UN

/STO

P)

OP

ER

ATIO

N

Transmit

Receive

FORMAT B

Computer

α2 Controller

STX

Com

man

d

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ckco

de (

HB

)

ETX

Sum

che

ckco

de (

LB)

or

Com

plet

e fla

g

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Com

man

d

No.

com

ms

byte

s

For

mat

No.

Sta

tion

No.

Sum

che

ckco

de (

LB)

No.

of

devi

ces

Dev

ice

stat

us

Sum

che

ckco

de (

HB

)

NAK

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Err

or C

ode

STX

STX

STX

ETX

Computer

α2 Controller

STX

Com

man

d

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of d

evic

es

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ckco

de (

HB

)

ETX

Sum

che

ckco

de (

LB)

Dev

ice

stat

us

Com

plet

e fla

g

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

STX

STX

ACK

No.

com

mby

tes

For

mat

No.

Sta

rtio

n N

o.

STX

NAK

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Err

or C

ode

o r

7 - 3


Note:1 ) Format B WRITE/(RUN/STOP) operation can produce an error code even though a

standard complete flag has been sent. If the Transmit message contains the correct syntaxthen a complete flag will be sent, however, if the reply data is corrupt then a NAK messagewill be generated.

2 ) The write message string is intended for BIT data accessing, therefore, only one byte hasbeen allocated to the Device Status setting. To write to WORD data, 2 bytes must beallocated to the Device setting. Thus, caution in setting the No. of communication bytesand the sum code check must be taken.

Read/Write operation for Format B follows a different structure to Format A. Format B uses amore complex string to access internal devices. However, the write operation contains theDevice Status parameter used to indicate the ON/OFF state of the intended device.

Time Switch settings follow Format B protocol, however, the structure and content of the stringdiffers from the standard READ/WRITE mode operation. Refer to section 7.6.5 for furtherdetailed information concerning Time Switch settings for Format B. Format B READ Mode Format B WRITE mode (BIT)

C ontro l C ode


Form at N o.

S tation N o.

C om m and

N o. o f devices

D evice N o. (LB)

D evice N o. (H B)

C ontro l C ode

Sum C heck (LB)

Sum C heck (H B)

D evice S tatus

D evice C ode

C ontro l C ode


Form at N o.

S tation N o.

C om m and

N o. o f devices

D evice C ode

D evice N o. (LB)

D evice N o. (H B)

C ontro l C ode

Sum C heck (LB)

Sum C heck (H B)

7 - 4


7.3 Control Protocol elements

The following section will explain the control elements used in the α2 Series Dedicatedprotocol Transmit/Receive message. Refer to section 7.6 for detailed information concerningthe commands available with this protocol.

The α2 Series Controller is not a ASCII generated format, but comprised of a 8-bit binarystructure.

Table 7.3: Format A and B protocol elements

Control Element Description Section

1) Control CodesThe Control codes are one byte hexadecimalASCII representation of standard protocolterminology.

7.3.1

2) No. Communication Bytes Standard number of bytes in one transmit/receive message. 7.3.2

3) Format No. Format number used to identify Format A orFormat B type protocol message. 7.3.3

4) Station No. Ass igned s ta t i on number fo r con t ro l le ridentification. 7.3.4

5) Command Read, Write or Remote RUN/STOP operationare declared as the commands. 7.3.5

6) No. of Devices Total number of internal devices or I/O that are tobe read/written from/to the controller. 7.3.6

7) Device CodeEach individual internal device has been given adevice code. The single byte code cannot bechanged from original default setting.

7.3.7

8) Device No. Head address of the internal device or I/O beingread or written from/to the controller. 7.3.8

9) Device StatusAvailable only to Transmit message in writemode for Format B and reply sent from thecontroller when in Read mode for Format B.

7.3.9

10) Sum Check Sum check used to verify that the data in amessage has not been corrupted. 7.3.10

11) Error Code Specific error coded relating to either sum check,protocol, device or remote error. 7.3.11

7 - 5


7.3.1 Control Codes

The Control codes are listed below:

7.3.2 No. of Communication Bytes

The number of communication bytes is used to check the validly of the message syntax. Whenusing Format A the number of communication bytes for the Transmit message starts from theFormat No. and finishes with the ENQ control code. The number of communication bytes for aReceive message starts from the Format No. and finishes with the ACK control code. In thesituation of receiving an error message the number of communication bytes for a Receivemessage starts from the Format No. and finishes with the appropriate error code.

Format A Type - Line Check

Table 7.4: Control Codes

Signal Code (Hex) Description

STX 02H Start of TeXt

ETX 03H End of TeXt

ENQ 05H ENQuiry

ACK 06H ACKnowledge

NAK 15H Not AcKnowledge

! 21H Completion

Computer

α2 Controller 03 = 01 + 01 + 01

03 = 01 + 01 + 01 (bytes)

04 = 01+01 + 01 (bytes)+ 01

or

STX

ACK

For

mat

No.

Sta

tion

No.

STX

NAK

For

mat

No.

Sta

tion

No.

Err

or C

ode

STX

ENQ

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H

No.

com

mby

tes

03H

No.

com

mby

tes

04H

(bytes)

7 - 6


Read message command - When using Format B the number of communication bytes startsfrom the Format No. and finishes with the Higher Byte of the Device No. Write message command - When using Format B the number of communication bytes startsfrom the Format number and finishes with the Device Status of the last device. Run/Stop command - When using Format B the number of communication bytes starts fromthe Format No. and finished with the RUN/STOP command.Received message command - When using Format B The number of communication bytesstarts from the Format No. and finishes with the! completion control code. The number ofcommutation bytes for the response data message starts from the Format No. and finisheswith the Device Status. Error message command - When using Format B the number of communication bytes startsfrom the Format No. and finishes with the appropriate error code. Format B Type - READ message

The maximum number of Communication Bytes for a given message is 250 bytes. Refer tosection 7.3.6 for further details for maximum devices to be accessed.

7.3.3 Format Number

The Format number is used to differentiate format type. Either Format A or Format B is usedfor the intended task.Table 7.5: Format Type command

Format Type Instruction Command

Format A 40

Format B 41

07 = 01 + (bytes)

Computer

α2 Controller 01 + 01 + 01 + 01 + 01 + 01

STX

Com

man

d

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

07H

No.

of

devi

ces

01H

03 =(bytes)(bytes)

05

or

STX

Com

plet

e fla

g

For

mat

No.

Sta

tion

No.

Dev

ice

stat

us

STX

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

For

mat

No.

Sta

tion

No.

Com

man

d

No.

com

mby

tes

03H

No.

com

mby

tes

05H

01 + 01 + 01 = 01 + 01 + 01 + 01 + 01

04 = 01 + 01 +

NAK

For

mat

No.

Sta

tion

No.

STX

Err

or C

ode

No.

com

mby

tes

04H

01 + 01 (bytes)

No.

of

devi

ces

01H

7 - 7


7.3.4 Station Number

The personal computer and α2 Series Controller follow as a master/slave relationship. Allcommunication is initiated from the personal computer. The station number set in the controllermust match the station number in the command string. If the station number conflict, then areply message will not be sent from the controller.

The α2 Series Controller Version 1.00 is equipped with an RS-232C interface, thus a 1:1 relationship can be achieved. A maximum of 00~0F(hex) can be set for the controller.

7.3.5 Command

The command defines if the type of transmission will be a Read/Write Command or a RemoteRun/Stop command.

Note:*1 The run/stop operation via dedicated protocol follows format B. However, number of

devices, device number and device code is not used as it is replaced by either of thefollowing:

Refer to section 7.6.4 for detailed information concerning the command structure.

Table 7.6: Instruction Command Setting

Command Command CodeNumber (Hex)

Read 00H

Write 01H

Run/Stop*1 10H

RTC Read 20H

RTC Write 21H

Table 7.7: RUN/STOP command code

Operation Hex Code

RUN 01H

STOP 00H

C om puter

R S-232C

AL2-G SM -C AB

R S-232C Interface

Station N um ber 00

7 - 8


7.3.6 Number of Devices

The Number of Devices is restricted by total number of Communication Bytes. The Transmit/Receive data message contains a maximum of 250 bytes. Thus, caution must be taken whenreading BIT/WORD data. Refer to the Note below for detailed caution information. Format B - READ message

Note: Format B cautions1 ) READ Message - BIT data

The maximum number of BIT devices that can be read at any one time is restricted by themaximum number of communication bytes (250 bytes) contained in a single message.Each device is represented by the Device code, Device No, (LB) and Device No. (HB). (Max No. of Comm. bytes - (Format No. + Stat No. + Command + No. of Devices)) /(Device code + Device No(LB) + Device No. (HB)) = (250 - 4) / 3 = 246 / 3 = 82 Therefore, the user can read 1 ~ 82 BIT devices at any one time.

2 ) READ Message - WORD dataThe maximum number of WORD devices that can be read at any one time is restricted bythe maximum number of communication bytes (250 bytes) contained in a single message.Each device is represented by the Device code, Device No, (LB) and Device No. (HB). (Max No. of Comm. bytes - (Format No. + Stat No. + Command + No. of Devices)) /(Device code + Device No(LB) + Device No. (HB)) = (250 - 4) / 3 = 246 / 3 = 82 Therefore, the user can read 1 ~ 82 WORD devices at any one time.

Computer

α2 Controller 02 = +

STX

Com

man

d

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

Dev

ice

No.

(HB

)

Dev

ice

code

Dev

ice

No.

(LB

)

No.

of

devi

ces

02H

(devices)01*1 01*1

STX

Com

plet

e fla

g

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

o r

STX

NAK

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Err

or C

ode

Sta

tion

No.

STX

No.

com

mby

tes

For

mat

No.

Sum

che

ck(H

B)

Dev

ice

stat

us

Sum

che

ck(L

B)

Dev

ice

stat

us

Com

man

d

ETX

No.

of

devi

ces

02H

7 - 9


3 ) WRITE Message - BIT dataThe maximum number of BIT devices that can be written at any one time is restricted bythe maximum number of communication bytes (250 bytes) contained in a single message.Each device is represented by the Device code, Device No, (LB), Device No. (HB) andDevice Status (1byte).(Max No. of Comm. bytes - (Format No. + Stat No. + Command + No. of Devices)) /(Device code + Device No(LB) + Device No. (HB) + Device Status) = (250 - 4) / 4 = 246 / 4 = 61Therefore, the user can write 1 ~ 61 BIT devices at any one time.

4 ) WRITE Message - WORD dataThe maximum number of WORD devices that can be written at any one time is restrictedby the maximum number of communication bytes (250 bytes) contained in a single mes-sage. Each device is represented by the Device code, Device No, (LB), Device No. (HB),Device Status (LB) (1byte) and Device Status (HB) (1byte).(Max No. of Comm. bytes - (Format No. + Stat No. + Command + No. of Devices)) /(Device code + Device No(LB) + Device No. (HB) + Device Status(LB) + Device Sta-tus(HB)) = (250 - 4) / 5 = 246 / 5 = 49Therefore, the user can write 1 ~ 49 WORD devices at any one time.

5 ) Time Switch READ Message.The READ operation of a Time Switch settings follows the identical structure to reading aCommunication Word device in Format B. The maximum number of Time Switch devicesthat can be read at any one time is restricted by the maximum number of communicationbytes (250 bytes) contained in the reply message. (Max No. of Comm. bytes - (Format No. + Stat No. + Command + No. of Devices)) /(RTC0 + RTC1 + RTC2 + RTC3) =(250 - 4) / 4 = 246 / 4 = 61Therefore, the user can read 1 ~ 61 Time Switch settings at any one time.Refer to section 7.6.5 for further infromation concerning Time Switch settings.

6 ) Time Switch WRITE MessageThe maximum number of Time Switch devices that can be read at any one time isrestricted by the maximum number of communication bytes (250 bytes) contained in a sin-gle message. Each device is represented by the Device code, Device No, (LB), Device No.(HB), RTC+0, RtTC+1, RTC+2 and RTC+3. (Max No. of Comm. bytes - (Format No. + Stat No. + Command + No. of Devices)) /(Device code + Device No(LB) + Device No. (HB) + RTC0 + RTC1 + RTC2 + RTC3) =(250 - 4) / 7 = 246 / 7 = 35Therefore, the user can write 1 ~ 35 Time Switch settings devices at any one time.Refer to section 7.6.5 for further infromation concerning Time Switch settings.

A mixture of Time Switch, BIT and WORD data can be sent via one Transmit mes-sage.

7 - 10


7.3.7 Device Code

Each type of Bit or Word Device has a device code which corresponds to a memory location inthe α2 series controller. Locations for the System Bits, Inputs, Outputs, Keys, Link Input, andLink Output are permanent but the Function Block settings (Communication Bit and WordDevices) must be set in the “Options/Dedicated Communication” dialog box in the VLSsoftware. Remember to set aside some memory in the same dialog box for these devices.Refer to section ** for VLS settings.

Note:

*1 The settings for the α2 controller input extension boards: Where EI 01~04 for AL2-4EXand AL2-4EX-A2 are 129 - 132 respectively.

*2 The settings for the α2 controller output extension boards: Where EO 01~04 for AL2-4EYR and AL2-4EYT are 129 - 132 respectively.

*3 Each hexadecimal value is represented by a HB and LB. Where HB is the higher byte andLB is the lower byte.

*4 The full 100 data range can only be accessed if the appropriate memory has beenallocated from either the front panel keys or VLS software.

*5 key input numerical order

Table 7.8: Device Code and Access Data

Device NameDevice Code

(Hex)Device Range

(Decimal)

Device Range (Hex)

(HB LB)*3Read

AccessWrite

Access

System Bit (M) 40 1 ~ 24 00 01 ~ 00 0E Yes No

Input Terminal (I) 41 1 ~ 15 00 01 ~ 00 0F Yes Yes

External Input (EI) 41 129 ~ 132 *1 00 81 ~ 00 84 Yes Yes

Output Terminal (O) 42 1 ~ 9 00 01 ~ 00 09 Yes Yes

External Output (EO) 42 129 ~ 132 *2 00 81 ~ 00 84 Yes Yes

Key Input (K) 44 1 ~ 8 *5 00 01 ~ 00 08 Yes Yes

Link Input (E) 45 1 ~ 4 00 01 ~ 00 04 Yes Yes

Link Output (A) 46 1 ~ 4 00 01 ~ 00 04 Yes Yes

Control Device (N) 47 1 ~ 4 00 01 ~ 00 04 Yes Yes

Analog In 61 1 ~8 00 01 ~ 00 08 Yes No

CommunicationBit Device (CB) 48 1 ~ 100*4 00 01 ~ 00 64 Yes Yes

CommunicationWord Device (CW) 69 1 ~ 100*4 00 01 ~ 00 64 Yes Yes

Input No. (hex) Key

0001 “OK”

0002 “ESC”

0003 “+”

0004 “-”

0005 “ ”

0006 “ ”

0007 “ ”

0008 “ ”

7 - 11


7.3.8 Device Number

The Device Number is used in conjuction with the Device Code. Once the Device has specifiedwhat the internal device represents, then the Device Number is used to select the appropriatedevice from the range mentioned above. Each Device Number is comprised of 2 bytes:Lower byte (LB)Higher byte (HB)Example - The user wants to check the status of Input 11. Converting input 11 to a four digitHexadecimal number 00 0B. The High Byte (HB) = 00. The Low Byte (LB) = 0B. Thus, the userwill enter the Device Code followed by 0B 00 to read/write data from/to Input 11.

7.3.9 Device Status

1 ) BIT Device - A single byte is allocated to the Device Status when used for both READ andWRITE operations.

2 ) WORD Device - Two bytes are allocated to the Device Status when used for both READand WRITE operations. Therefore, both the lowerbyte (LB) and Higherbyte (HB) of thedevice status when used in conjunction with a WORD application can allow the user toenter a maximum value of: 32767 (decimal) and minimum value of -32768 (decimal). Thecounter function block has a minimum value of 0 and the PWM function block has aminimum value of Period Time.

Table 7.9: Byte representation of the BIT status

State Device Status (Hex)

ON 01

OFF 00

7 - 12


7.3.10 Sum Check

The Sum Check is the four digit Hexadecimal total of the numbers between the Format No. andthe ETX command. The Sum Check numbers are Hexadecimal numbers with the Low Bytewritten directly after the ETX command and the High Byte as the last two digits in theCommand String. The Sum check is used to verify the validity of the message. Format B - READ message

41H+00H+00H

Computer

α2 Controller +01H+42H+01H+00HSum Check = 00 85 H

STX

ETXN

o. c

omm

byte

s

07H

For

mat

No.

41H

Sta

tion

No.

00HC

omm

and

00H

No.

of

devi

ces

01H

Dev

ice

code

42H

Dev

ice

No.

(LB

)

01H

Dev

ice

No.

(HB

)

00H

Sum

che

ck(L

B)

85H

Sum

che

ck(H

B)

00H

Lower byteHigher byte

or

ST

X

ST

X

ET

X

No.

com

mby

tes

03H

For

mat

No.

40H

Sta

tion

No.

00H

Com

plet

efla

g

21H

No.

com

mby

tes

05H

For

mat

No.

41HS

tatio

nN

o.00H

Com

man

d

00H

No.

of

devi

ces

01H

Dev

ice

stat

us

00H

Sum

che

ck(L

B)

42H

Sum

che

ck(H

B)

00H

41H+00H+00H+01H+00H

ST

X

NA

K

For

mat

No.

Sta

tion

No.

ST

X

Err

or C

ode

No.

com

mby

tes

04H

Sum C heck = 00 42 H

Lower byteH igher byte

7 - 13


7.3.11 Error Codes

If there is a problem in the communication line or in the command string, the α2 controller willreturn an error message. The error message will follow an NAK reply as shown below.

Table 7.10: Error Codes for Format “A” Transmissions Code Error Error Description

01H Sum Check error There is an error in the Sum Check value used in Protocol Format “B”.

02H Protocol error

There is a discrepancy in the number of communication bytes in the message.

Command for READ, WRITE or RUN/STOP operation is incorrect.

03H Device error

The data stored in the device specification is outside the device range.

The Device Status setting value in out of the intended devices’s range

The write protection for the memory cassette is enabled.

04H Remote error There is a problem in the remote Start/Stop operation. Usually the cause of this error is an error in the controller program.

05H Date/Time error The Date or Time is invalid.

7 - 14


7.4 Communication Timing Chart

The communication time for α2 Series dedicated protocol is represented by the diagrambelow. The communication time is identical for Read and Write operations. Thus, only onediagram has been used to demonstrate the possible delaytimes for sending and receiving 8-bitbinary messages.

7.4.1 Read/Write Data from the Controller

Format B READ/WRITE operation

7.4.2 Communication Time

The calculation performed below are a guide to the approximate communication timing fordedicated protocol.

T0,T1,T2 = 1/Baud Rate x No. of bits in 1 character x No. of Characters = 1/9600 x [1 (Startbit) x 8 (datalength) x 0 (parity none) x 1 (stopbit] x No. of characters

TP = Process Time *1maximum time of 2.5s

Tw = 5ms + maximum of 1 scan timemaximum time of 2.5s

Note:

*1 Process Time - Represents the duration needed for the α2 Series Controller to processwith either READING the intended device or WRITING to the intended devices specified inthe Command String. 1scan time + 5ms is the minimum time used for the Process Time.

ST

X

02H

ET

X

03HS

TX

02H

!

21H

ST

X

02H

ET

X

03H

Computer

α2 Controller

Time ChartLine

CommunicationLine

T0 Tw TP T2T1

7 - 15


7.5 Character Area Data Transmission

The Data Transmission area is the important segment of the message that the user mustaddress correctly in order to read/write the from/to the α2 Series Controller. The procedure toaddress all internal devices is identical, Refer to section 7.3.7 for respective device codes.

7.5.1 Read Data Transmission

The READ Data Transmission area is identical in reading BIT or WORD information.

Format B - READ Message

Example - READ Message

Table 7.11: Data Transmission explained

Control element Hex Description

No. of devices 01H There is only one intended device to be READ from the controller

Device Code 41H The device code is for the Input Device.

Device No. (LB) 0CH The lower byte in conjunction with the higher byte indicates Input 11is the intended device.

Device No. (HB) 00H The higher byte in conjunction with the lower byte indicates Input 11is the intended device.

STX

ETX

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of d

evic

es

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

D a ta T ransm iss ion

D ata T ransm iss ion



No.

of

devi

ces

01H

Dev

ice

No.

(LB

)

0C H

Dev

ice

code

41H

Dev

ice

No.

(HB

)

00H

7 - 16


7.5.2 Write Data Transmission

The WRITE Data Transmission area is different in reading BIT and WORD information. Thefollowing illustration demonstrates the format structure for writing BIT data. The device status isa single byte.

BIT DataFormat B - WRITE Message - BIT data

Example - WRITE Message - BIT data



No. of devices 01H There is only one intended device to be WRITTEN to thecontroller

Device Code 48H The device is from the Communication BIT Range.

Device No. (LB) 04H The lower byte in conjunction with the higher byte indicatesCommunication Word device 4 is the intended device.

Device No. (HB) 00H The higher byte in conjunction with the lower byte indicatesCommunication Word device 4 is the intended device.

Device Status 01H The Communication BIT device will be turned ON.

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of d

evic

es

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

D a ta T ransm iss ion


Dev

ice

stat

us

STX

ETX



No.

of

devi

ces

01H

Dev

ice

No.

(LB

)

04H

Dev

ice

code

48H

Dev

ice

No.

(HB

)

00HD

evic

est

atus

01H

7 - 17


The following illustration demonstrates the format structure for writing word data. Writing worddata requires the Device Status to contain a lower and higher byte, therefore, the datatransmission area is extended by one byte when writing to WORD data

WORD DataFormat B - WRITE Message - WORD data

Example - WRITE Message - WORD data



No. of devices 01H There is only one intended device to be READ from the controller

Device Code 69H The device is from the Communication Word Range.

Device No. (LB) 04H The lower byte in conjunction with the higher byte indicatesCommunication Word device 4 is the intended device.

Device No. (HB) 00H The higher byte in conjunction with the lower byte indicatesCommunication Word device 4 is the intended device.

Device Status (LB) 2B The lower byte in conjunction with the higher byte indicates avalue of 4651 decimal

Device Status (HB) 12 The higher byte in conjunction with the lower byte indicates avalue of 4651 decimal

STX

ETX

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of d

evic

es

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

Data Transmission

Data Transmission



No.

of

devi

ces

01H

Dev

ice

No.

(LB

)

04H

Dev

ice

code

69H

Dev

ice

No.

(HB

)

00H

Dev

ice

Sta

tus

Dev

ice

Sta

tus

2BH 12H

7 - 18


7.5.3 Time Switch Data Transmission

The READ operation for the Time Switch Settings is identical to the READ operation of aCommunication Word Device. However, due to the amount of data within one time switchsetting, 4 bytes have been allocated.

Format B - WRITE Message

Real Time Clock Structure

Using Format B, setting one Time Switch involves configuring a four-level byte structure.

Note*1, *2, *3, *4 Refer to Section 7.6.5 for further detailed information.

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

RT

C+

0R

TC

+1

RT

C+

2R

TC

+3

*1 *2 *3 *4

R T C 0

R T C 1

R T C 2

R T C 3

*1

*2

*3

*4

7 - 19


7.6 Commands

The following section will outline commands used to implement dedicated protocol with an α2Series Controller.

Table 7.14: Dedicated protocol commands

Command Description Section

1) Communication Line CheckFormat A has limited operational functionary, however,checking the connection between the controller and thepersonal computer is the primary aim.

7.6.1

2) Read Command The READ command is used to retrieve the status ofthe intended internal device. Format B only. 7.6.2

3) Write Command The WRITE command is used to control the status ofthe intended internal device. Format B only. 7.6.3

4) Run/Stop Command The RUN/STOP command is used to control theoperation of the controller. 7.6.4

5) Time Switch Command

The Time Switch command follows the same principleas the READ/WRITE commands in Format B, however,a different structure is required due to the amount ofdata needed to implement a setting change.

7.6.5

6) RTC Read Command The RTC Read Command is Read of Alpha 2 time, dateand RTC clock speed adjust value. 7.6.7

7) RTC Set Command The RTC Set Command is Set of Alpha 2 time, date andRTC clock speed adjust value. 7.6.8

7 - 20


7.6.1 Communication Line Check

1 ) Command SpecificationFormat A is shown.

2 ) Command ExampleStandard command for communication line check. This default command string can be used atany time for checking if dedicated protocol is possible. If no response is replied from thecontroller, check the communication settings, check cabling and check the command string

The received message shows that the communication line is fine.

Computer

α2 Controller 03 = 01 + 01 + 01

03 = 01 + 01 + 01 (bytes)

04 = 01+01 + 01 (bytes)+ 01

or

STX

ACK

For

mat

No.

Sta

tion

No.

STX

NAK

For

mat

No.

Sta

tion

No.

Err

or C

ode

STX

ENQ

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H

No.

com

mby

tes

03H

No.

com

mby

tes

04H

(bytes)

C om puter

α2 C ontro llerSTX

ACKF

orm

atN

o.S

tatio

n N

o.

STX

ENQF

orm

atN

o.S

tatio

nN

o.

No.

com

mby

tes

03H 40H 00H02H 03H

No.

com

mby

tes

03H02H 40H 00H 06H

7 - 21


7.6.2 Read Command

1 ) Command SpecificationFormat B is shown.

2 ) Command Example a ) Read Status of Output O01 in Station 00.

The received message shows that the Status of Output O1 is OFF.

07 = 01 + (bytes)

Computer

α2 Controller 01 + 01 + 01 + 01 + 01 + 01

STX

Com

man

d

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of d

evic

es

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

07H

03 =(bytes)(bytes)

05

or

STX

Com

plet

e fla

g

For

mat

No.

Sta

tion

No.

Dev

ice

stat

us

STX

No.

of d

evic

es

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

For

mat

No.

Sta

tion

No.

Com

man

d

No.

com

mby

tes

03HN

o. c

omm

byte

s05H

01 + 01 + 01 = 01 + 01 + 01 + 01 + 01

04 = 01 + 01 +

NAK

For

mat

No.

Sta

tion

No.

STX

Err

or C

ode

No.

com

mby

tes

04H

01 + 01 (bytes)

C om puter

α2 C ontro ller

STX

Com

plet

e fl

ag

For

mat

No.

Sta

tion

No.

Dev

ice

sta

tusS

TX N

o. o

fde

vice

s

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

For

mat

No.

Sta

tion

No.

Com

man

d

No.

com

mby

tes

03H

No.

com

mby

tes

05H02H 40H 00H 21H 02H 41H 00H 00H 01H 00H 03H 42H 00H

STX

C

omm

and

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

07H02H 41H 00H 00H 01H 42H 01H 00H 03H 00H85H

7 - 22


b ) Read the Status of the Delay FB Word parameters CWNo.5 and 6 as shown below.Refer to section 6.1 for more details concerning VLS settings for dedicated protocol bit/word settings.

The following command string will use device code 69 (communication word CWNo. devicecode) to access parameters 5 and 6.

The received message shows thatParameter 5 00H (HB) 32H (LB) = 50 decimalParameter 6 00H (HB) 0FH (LB) = 15 decimal

Computer

α2 Controller

No.

com

mby

tes

0AH02H

For

mat

No.

41H

Sta

tion

No.

00H

Com

man

d

00H

No.

of

devi

ces

02H

Dev

ice

code

69H

Dev

ice

No.

(LB

)

05H

Dev

ice

No.

(HB

)

00H

ETX

03H

Sum

che

ck(L

B)

20H

Sum

che

ck(H

B)

01H

Dev

ice

code

69H

Dev

ice

No.

(LB

)

06H

Dev

ice

No.

(HB

)

00H

STX

No.

com

mby

tes

03H02H

For

mat

No.

40H

Sta

tion

No.

00H

Com

plet

efla

g

21H

STX

No.

com

mby

tes

08H02H

For

mat

No.

41H

Sta

tion

No.

00H

Com

man

d

00H

No.

of

devi

ces

02H

Dev

ice

stat

us

32H

Dev

ice

stat

us

00H

Dev

ice

stat

us

0FH

Dev

ice

stat

us

00H

Sum

che

ck(L

B)

84H

Sum

che

ck(H

B)

00H

STX

ETX

03H

7 - 23


7.6.3 Write Command

1 ) Command SpecificationFormat B is shown

2 ) Command Examplea ) Turn Output O1 ON on Station 00

The received message shows that the Transmit message to turn Output 01 ON or 01H instation 00H was successfully completed.

C om puter

α2 C ontro ller

STX

Com

man

d

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of d

evic

es

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ckco

de (

HB

)

ETX

Sum

che

ckco

de (

LB)

Dev

ice

stat

us

Com

plet

e fla

g

No.

com

mby

tes

For

mat

No.

Sta

tion

No.

STX

STX

NAK

N

o. c

omm

byte

s

For

mat

No.

Sta

tion

No.

Err

or C

ode

o r

04H

03H

03 = 01+01 + 01(bytes)

04 = 01+01 + 01 (bytes)+ 01

08 = 01+01 + 01(bytes)

+ 01 01+01 + 01 + 01+

04H

STX

ACKN

o. c

omm

byte

s

For

mat

No.

Sta

rtio

n N

o.

02 = 01+01(bytes)

02H

C om puter

α2 C ontro ller

STX

Com

plet

e fl

ag

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H02H 40H 00H 21H

Dev

ice

sta

tus

01H

STX

C

omm

and

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

08H02H 41H 00H 01H 01H 42H 01H 00H 03H 01H87H

STX F

orm

atN

o.S

tatio

n N

o. ACKN

o. c

omm

byte

s

03H02H 40H 00H 06H

7 - 24


b ) Write a value of 4369 to Count Value of the Up/Down FB Word parameter CWNo.3 asshown below. Refer to section 6.1 for more details concerning VLS settings for dedi-cated protocol bit/word settings.

The received message shows that VLS has completed the change in count value for the UP/DOWN function block and a value of 4369 (decimal) has been achieved.

C om puter

α2 C ontro ller

STX

Com

plet

e fl

ag

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H02H 40H 00H 21H

Dev

ice

sta

tus

11H

STX

C

omm

and

For

mat

No.

Sta

tion

No.

Dev

ice

No.

(HB

)

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

09H02H 41H 00H 01H 01H 63H 03H 00H 03H 00HD 1H

Dev

ice

sta

tus

11H

ACKF

orm

at N

o.S

tatio

n N

o.STX N

o. c

omm

byte

s

04H02H 40H 00H 06H

7 - 25


7.6.4 Remote RUN/STOP Operation

1 ) Command Examplea ) RUN command for dedicated protocol

b ) STOP command for dedicated protocol

C om puter

α2 C ontro ller

STX

Com

plet

e fl

ag

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H02H 40H 00H 21H

STX

C

omm

and

For

mat

No.

Sta

tion

No.

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

04H02H 41H 00H 10H 03H 00H52H

Run

01H

ACKF

orm

at N

o.S

tatio

n N

o.STX N

o. c

omm

byte

s

04H02H 40H 00H 06H

ACKF

orm

at N

o.S

tatio

n N

o.STX N

o. c

omm

byte

s

04H

C om puter

α2 C ontro ller

STX

Com

plet

e fl

ag

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H02H 40H 00H 21H

STX

C

omm

and

For

mat

No.

Sta

tion

No.

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

04H02H 41H 00H 10H 03H 00H51H

Sto

p

00H

02H 40H 00H 06H

7 - 26


7.6.5 Time Switch Settings

1 ) Command Specificationa ) Format B - Time Switch WRITE command.

Data transmission area

Note:*1 Refer to table 7.15 level RTC+0 settings.*2 Refer to table 7.15 level RTC+1 settings.*3 Refer to table 7.15 level RTC+2 settings.*4 Refer to table 7.15 level RTC+3 settings.

C om puter

α2 C ontro ller

STX N

o. c

omm

byte

s

03H

For

mat

No.

Sta

tion

No.

Com

plet

efla

g

o r

STX

NAK

For

mat

No.

Sta

tion

No.

Err

or C

ode

No.

com

mby

tes

04H

STX N

o. c

omm

byte

s

0BHF

orm

at N

o.

Sta

tion

No.

Com

man

d

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

No.

com

mby

tes

04HF

orm

at N

o.

Sta

tion

No.

Com

man

d

STX

ETX S

um c

heck

(LB

)S

um c

heck

(HB

)

69H

RT

C +

0

RT

C +

1

RT

C +

2

RT

C +

3

*1 *2 *3 *4

ACK

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

RT

C+

0R

TC

+1

RT

C+

2R

TC

+3

*1 *2 *3 *4

R T C 0

R T C 1

R T C 2

R T C 3

*1

*2

*3

*4

7 - 27


b ) Format B Time Switch READ command.

Data Transmission area

Note:*1 Refer to table 7.15 level RTC+0 settings.*2 Refer to table 7.15 level RTC+1 settings.*3 Refer to table 7.15 level RTC+2 settings.*4 Refer to table 7.15 level RTC+3 settings.

C om puter

α2 C ontro ller

STX N

o. c

omm

byte

s

03H

For

mat

No.

Sta

tion

No.

Com

plet

efla

g

o r

STX

NAK

For

mat

No.

Sta

tion

No.

Err

or C

ode

No.

com

mby

tes

04H

STX N

o. c

omm

byte

s

07H

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

RT

C +

0

RT

C +

1

RT

C +

2

RT

C +

3

*1 *2 *3 *4

ETX S

um c

heck

(LB

)S

um c

heck

(HB

)

No.

of

devi

ces

No.

com

mby

tes

08HF

orm

at N

o.

Sta

tion

No.

Com

man

d

STX

ETX S

um c

heck

(LB

)S

um c

heck

(HB

)

69H

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

RT

C+

0R

TC

+1

RT

C+

2R

TC

+3

*1 *2 *3 *4

R T C 0

R T C 1

R T C 2

R T C 3

*1

*2

*3

*4

7 - 28


3 ) Command Example - Weekly Time SettingsThe data in the Command code for a Weekly Time Setting consists of 4 bytes of data. Todetermine the hexadecimal numbers to put in the Command string, the entry data hasbeen set up per the Table below. The Hexadecimal numbers can be determined after fillingin the box with the appropriate data.

Notes:The Values in quotation marks “x” are defined for the weekly setting and will not change.The Values for the Hour parameter is a 5 digit binary number with a range of 0 to 23.The Values for the Minute parameter is a 6 digit binary number with a range of 0 to 59.

a ) Example - Send Data to Time Switch Setting 1 so that Monday, Wednesday, and Fridayof the First Week of Every month at 10:00 AM the Output turns On.

Step 1The values in +0 level are fixed as described above.

Step 2The Weekly values are shown below where only Wk 1 is activated.

Step3The Daily Values have Monday, Wednesday and Friday = 1.

Table 7.15: Weekly Time Setting Schedule

Level b7 b6 b5 b4 b3 b2 b1 b0

RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”

RTC+1 Week 5 Week 4 Week 3 Week 2 Week 1 Saturday Friday Thursday

RTC+2 Wednesday Tuesday Monday Sunday Hour Hour Hour Hour

RTC+3 Hour Min Min Min Min Min Min On/Off


RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”


RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”

RTC+1 Wk 5 = 0 Wk 4 = 0 Wk 3 = 0 Wk 2 = 0 Wk 1 = 1 Saturday Friday Thursday

RTC+2 Wednesday Tuesday Monday Sunday Hour Hour Hour Hour



RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”

RTC+1 Wk 5 = 0 Wk 4 = 0 Wk 3 = 0 Wk 2 = 0 Wk 1 = 1 Sat = 0 Fri = 1 Thur = 0

RTC+2 Wed = 1 Tues = 0 Mon = 1 Sun = 0 Hour Hour Hour Hour


7 - 29


Step 4The Hourly value is a five digit binary value for 10. 10 (dec) = 01010 binary.

Step 5The Minute value is a 6 digit value for 0. 0 (dec) = 000000 binary.

Step 6Finally, the On/Off value is 1 for On and the table is complete.

To values to put into the Command String must be in Hexadeximal values. Combine the tablebits b4-b7 and b0-b3 to give a two digit Hexadecimal number.

Step 7


RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”


RTC+2 Wed = 1 Tues = 0 Mon = 1 Sun = 0 Hour = 0 Hour = 1 Hour = 0 Hour = 1

RTC+3 Hour = 0 Min Min Min Min Min Min On/Off


RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”



RTC+3 Hour = 0 Min = 0 Min = 0 Min = 0 Min = 0 Min = 0 Min = 0 On/Off


RTC+0 “1” “0” “0” “0” “0” “0” “0” “0”



RTC+3 Hour = 0 Hour = 0 Min = 0 Min = 0 Min = 0 Min = 0 Min = 0 On =1

Table 7.16: Weekly Setting Table with Hexadecimal Values

Level b7 b6 b5 b4 b3 b2 b1 b0 Hexadecimal Command String Value

RTC+0 1 0 0 0 0 0 0 0 80 H

RTC+1 0 0 0 0 1 0 1 0 0A H

RTC+2 1 0 1 0 0 1 0 1 A5 H

RTC+3 0 0 0 0 0 0 0 1 01 H

7 - 30


Format B Command String for the weekly Time Switch.WRITE Command

Note: RTC *0, *1, *2 and *3 refer to the calculation performed in Table 7.16

C om puter

α2 C ontro ller

STX N

o. c

omm

byte

s

03H

For

mat

No.

Sta

tion

No.

Com

plet

efla

g

STX

ETXN

o. c

omm

byte

s

0BHF

orm

at N

o.

Sta

tion

No.

Com

man

d

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

RT

C +

0

RT

C +

1

RT

C +

2

RT

C +

3

*1 *2 *3 *4

41H 00H 01H 01H 69H 01H 00H 80H 0AH A5H 01H 03H D D H 01H

40H 00H 21HN

o. c

omm

byte

s04H

For

mat

No.

Sta

tion

No.S

TX

ACK

02H 40H 00H 06H02H

7 - 31


2 ) Command Example - Time Settings by DateThe data in the Command code for a Date Time Setting consists of 4 bytes of data. Todetermine the hexadecimal numbers to put in the Command string, the entry data hasbeen set up per the Table below. The Hexadecimal numbers can be determined after fillingin the box with the appropriate data. This data is slightly different than the code for theWeekly Time Settings!

Table 7.17: The Date Parameter Table


RTC+0 “1” “0” “0” DMY *1 DMY Year *2 Year Year

RTC+1 Year Year Year Month *3 Month Month Month Day *4

RTC+2 Day Day Day Day Hour *5 Hour Hour Hour

RTC+3 Hour Min *6 Min Min Min Min Min On/Off *7

Table 7.18: Parameter Bit Settings for Date Setting

Parameter Bit Locations Setting (Hex)

*1 Date/Month/Year (DMY) Level +0, b3,4

Time Settings by Date = 00

Monthly Time Settings = 01

Yearly Time Settings = 10

*2 Year Level +0: b0,1,2Level +1: b5,6,7

Year Setting = 1990 + Offset Value.Offset range is from 8 to 63.Example Year 2020 = 1990 + Offset Value thus, Offset Value = 30 decimal or 011110 binary.

*3 Month Level +1: b1,2,3,4 Monthly Range is from 0 - 12.

*4 Day Level +1: b0Level +2: b4,5,6,7 Day Range is from 1 to 31

*5 Hour Level +2: b0,1,2,3Level +3: b7 Hourly Range is from 0 - 23.

*6 Minute Level +3: b1,2,3,4,5,6 Minute Range is from 0 - 59

*7 On/Off Level +3: b0 On = 1Off = 0

7 - 32


Example 2 - Date Setting Write a Date Setting to turn Off the Time Switch set up as CW02 on February 20, 2002 at12:00.

Year Value = 2002; Month Value = 02; Day Value = 20; Hour Value = 12; Min Value = 0; On/OffValue = 0ff.

Installing the values from the Table above into the Date Parameter Table in Section 2.3.2 andcalculating the Hexadecimal values for each line gives the following values.

Note;RTC *0, *1, *2 and *3 settings correspond to Table 7.17.

Table 7.19: Parameter Bit Settings for Date Setting - Example 2

Parameter Actual Value# of Digits Description of Setting (Hex)

DMY 00 Time Settings by Date = 00

Year 001100 Year Setting = 2002 - 1990 = 12 decimal or 001100 binary

Month 0010 Month = 2 decimal or 0010 binary

Day 10100 Day = 20 decimal or 10100 binary

Hourly 01100 Hour = 12 decimal or 01100 binary

Minute 000000 Minute = 00 decimal or binary

On/Off 0 Off = 0

Table 7.20: Date Setting Table with Hexadecimal Values - Example 2

Level b7 b6 b5 b4 b3 b2 b1 b0Hexadecimal

Command String Value

+0 1 0 0 0 0 0 0 1 81 H

+1 1 0 0 0 0 1 0 1 85 H

+2 0 1 0 0 0 1 1 0 46 H

+3 0 0 0 0 0 0 0 0 00 H

C om pute r

α2 C ontro lle r

STX N

o. c

omm

byte

s

03H

For

mat

No.

Sta

tion

No.

Com

plet

efla

g

STX

ETXN

o. c

omm

byte

s

0BH

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

RT

C +

0

RT

C +

1

RT

C +

2

RT

C +

3

*1 *2 *3 *4

41H 00H 01H 01H 69H 02H 00H 81H FA H03H00H46H85H 01H

21H00H40H

No.

com

mby

tes

04H

For

mat

No.

Sta

tion

No.S

TX

02H

02H02H

ACK

40H 00H 06H

7 - 33


Example 3 - Monthly Time SettingA Monthly setting does not have a constant setting for either the Month or the Year. Theseparameters will be ON constantly and must therefore be set to a default value. The Value forthe Year Parameter is 08 H and the value for the Month is 01 H. Write a Monthly Setting to turn On the Time Switch set up as CW03 on the 25th of every monthat 08:35 AM.Year Value = 8 (default); Month Value = 1 (default); Day Value = 25; Hour Value = 08; Min Value= 35; On/Off Value = 1.

Installing the values from the Table above into the Date Parameter Table above and calculatingthe Hexadecimal values for each line gives the following values.

Note:RTC *0, *1, *2 and *3 settings correspond to Table 7.17

Table 7.21: Parameter Bit Setting Values for Monthly Setting - Example 3


DMY 01 Monthly Time Settings = 01

Year 001000 Year Setting = 8 (default) or 001000 binary

Month 0001 Month Setting = 1 (default) or 0001 binary



Minute 1000011 Minute = 35 decimal or 1000011 binary

On/Off 1 On = 1

Table 7.22: Date Setting Table for Monthly Values - Example 3



+0 1 0 0 0 1 0 0 1 89 H

+1 0 0 0 0 0 0 1 1 03 H

+2 1 0 0 1 0 1 0 0 94 H

+3 0 1 0 0 0 1 1 1 47 H

C om puter

α2 C ontro ller

STX N

o. c

omm

byte

s

03H

For

mat

No.

Sta

tion

No.

Com

plet

efla

g

STX

ETXN

o. c

omm

byte

s

0BH

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

RT

C +

0

RT

C +

1

RT

C +

2

RT

C +

3

*1 *2 *3 *4

41H 00H 01H 01H 69H 03H 00H 89H 16H03H47H94H03H 02H

21H00H40H

No.

com

mby

tes

04H

For

mat

No.

Sta

tion

No.

02H 40H 00H 06H

ACK

STX

02H

02H

7 - 34


Example 4 - Yearly SettingsThe Yearly setting must be set to a Default setting of 08H because it is On constantly. Write a Yearly Setting to turn On the Time Switch set up as CW04 on the 24th of Dec. of everyyear at 18:15 PM.Year Value = 8 (default); Month Value = 12; Date Value = 24; Hour Value = 18; Min Value = 15;On/Off Value = 1.

Installing the values from the Table above into the Date Setting Table and calculating theHexadecimal values for each line gives the following values.

Note:RTC *0, *1, *2 and *3 settings correspond to Table 7.17.

Table 7.23:


DMY 10 Yearly Time Settings = 10

Year 001000 Year Setting = 8 (default) or 001000 binary

Month 1100 Month Setting = 12 decimal or 1100 binary



Minute 100011 Minute = 35 decimal or 100011 binary

On/Off 1 On = 1

Table 7.24: Yearly Setting Table with Hexadecimal Values



+0 1 0 0 1 0 0 0 1 91 H

+1 0 0 0 1 1 0 0 1 19 H

+2 1 0 0 0 1 0 0 1 89 H

+3 0 1 0 0 0 1 1 1 47 H

C om puter

α2 C ontro ller

STX No.

com

mby

tes

03H

For

mat

No.

Sta

tion

No.

Com

plet

efla

g

STX

ETXN

o. c

omm

byte

s

0BH

For

mat

No.

Sta

tion

No.

Com

man

d

No.

of

devi

ces

Dev

ice

code

Dev

ice

No.

(LB

)D

evic

e N

o.(H

B)

Sum

che

ck(L

B)

Sum

che

ck(H

B)

RT

C +

0

RT

C +

1

RT

C +

2

RT

C +

3

*1 *2 *3 *4

41H 00H 01H 01H 69H 04H 00H 91H 22H03H47H89H19H 0AH

21H00H40H

No.

com

mby

tes

04H

For

mat

No.

Sta

tion

No.S

TX

02H 40H 00H 06H

ACK

02H

02H

7 - 35


7.6.6 VLS Time Switch Settings (Sample)

The Time Switch Setting atr ight is a sample of thed ia log box in the VLSsoftware.

This dialog box can be usedto se t Week ly o r Da i l ysettings.

This is an example of setting a TimeSwitch bydate in the VLS software. In this dialog box, it ispossible to choose the Date, Monthly or Yearlysettings.

7 - 36


Four T ime Set t ings areshown in this picture of aTime Switch. The types of The source code below is asample written in VisualBasic and is provided as ates t ing a ide fo r α2Ded ica ted Pro toco lcommunication.

7 - 37


7.6.7 RTC Read Command


*1 Status of time 0: Winter time , 1: Summer time , 0xff : RTC time invalid*2 DoW(Day of the week) 0: Sunday , 1: Monday , 2: Tuesday , 3: Wednesday , 4: Thursday , 5: Friday , 6: Saturday*3 ADJ(RTC clock adjust) The RTC clock adjust value is the adjustment of the RTC speed in steps of 0.25 s/d. -41...0...83 (0xD7...00...0x53)

2 ) Command ExampleController time: 2004/01/01 00:00.00 Thursday, RTC time invalid

or

STX

Com

plet

e fla

g

For

mat

No.

Sta

tion

No.

Yea

r(y

yyyh

)STX Y

ear

(yyy

yl)

Hou

r(h

h)

Day

(dd)

For

mat

No.

Sta

tion

No.

C

omm

and

No.

com

mby

tes

03HN

o. c

omm

byte

s0D H

NAK

For

mat

No.

Sta

tion

No.

STX

Err

or C

ode

No.

com

mby

tes

04H

C om puter

2 C ontro lle r

STX

C

omm

and

For

mat

No.

Sta

tion

No.

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

No.

com

mby

tes

03H 20H

20H

Mon

th(m

m)

Sec

(ss)

Min

(mm

)

AD

J(*

3)

DoW (*2)

Sta

tus

(*1)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

STX

Com

plet

efla

g

F

orm

at N

o.

S

tatio

n N

o.

Yea

r(y

yyyh

)STX Y

ear

(yyy

yl)

Hou

r(h

h)

Day

(dd)

F

orm

at N

o.

S

tatio

n N

o.

C

omm

and

No.

com

mby

tes

03H

No.

com

mby

tes

0D H

Com puter

2 C ontroller

STX

C

omm

and

For

mat

No.

S

tatio

n N

o.

S

um c

heck

(HB

)ETX

S

um c

heck

(LB

)

No.

com

mby

tes

03H 20H

20H

Mon

th(m

m)

Sec

(ss)

Min

(mm

)

AD

J(*

3)

DoW (*2)

Sta

tus

(*1)

S

um c

heck

(HB

)ETX

S

um c

heck

(LB

)

02H 41H 04H 03H 65H 00H

02H 40H 04H 21H 02H 41H D4H

02H3D H03H00H04HFFH

00H00H00H01H01H07H04H

7 - 38


7.6.8 RTC Write Command


*1 ADJ(RTC clock adjust) The RTC clock adjust value is the adjustment of the RTC speed in steps of 0.25 s/d. -41...0...83 (0xD7...00...0x53)

2 ) Command Example2004/05/30 10:11.00 ,Clock Adjust to -2.0s/d

or

STX

Com

plet

e fla

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For

mat

No.

Sta

tion

No.

Yea

r(y

yyyh

)

STX

Yea

r(y

yyyl

)

Hou

r(h

h)

Day

(dd)

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

03H

No.

com

mby

tes

03H

NAK

For

mat

No.

Sta

tion

No.

STX

Err

or C

ode

No.

com

mby

tes

04H

C om puter

2 C ontro lle r

STX

C

omm

and

For

mat

No.

Sta

tion

No.

No.

com

mby

tes

0BH 21H

Mon

th(m

m)

Sec

(ss)

Min

(mm

)

AD

J(*

1)

Sum

che

ck(H

B)E

TX

Sum

che

ck(L

B)

ACK

STX

Com

plet

efla

g

F

orm

at N

o.

S

tatio

n N

o.

Yea

r(y

yyyh

)

Yea

r(y

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)

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7 - 39


7.7 Sample Visual Basic program

NoteThe Visual Basic program is an example of a user interface to the dedicated protocolfunctionality within the α2 Controller. The MSCOM settings for RTS and DTR must be enabledfor the following program to operate properly.

Alpha 2 Dedicated Protocol Communication Example VB Application1. Start a new VB Project, Project Type "Standard-EXE".2. Create a graphical user interface as shown in Figure 1. The elements labled by A...L must

be existing with at least the properties of the following table.

Figure 1

GUI Item Properties Value

A OptionButton

(Name) optCmd

Index 0

TabIndex 0

B TextBox (Name) txtTxText

C TextBox (Name) txtRxText

D OptionButton(Name) optCmd

Index 1

E OptionButton(Name) optCmd

Index 2

F OptionButton(Name) optCmd

Index 3

G OptionButton(Name) optCmd

Index 4

H OptionButton(Name) optCmd

Index 5

I Timer (Name) Timer1

J MSComm (Name) MSComm1

K CommandButton (Name) cmdTransmit

L CommandButton (Name) cmdReset

A B C D E F G H I J K L

7 - 40


3. Open the Code Window in VB and insert the following codelines.

Option ExplicitPrivate timecnt As IntegerPrivate optidx As IntegerPrivate cmdstr() As BytePrivate cmdlen As IntegerPrivate resplen As Integer Private Sub Form_Load() txtTxText.Text = "" txtRxText.Text = "" Call StopTimer Timer1.Interval = 100End SubPrivate Sub optCmd_Click(Index As Integer) optidx = Index Call SetCommand Call ShowTxDataEnd SubPrivate Sub cmdTransmit_Click() Dim lenrxdata As Integer Dim rxdata() As Byte cmdTransmit.Enabled = False If PortOpen = True Then Call SendCmnd lenrxdata = resplen Call RecResponse(rxdata, lenrxdata) Call ShowRxData(rxdata, lenrxdata) End If cmdTransmit.Enabled = TrueEnd SubPrivate Sub cmdReset_Click() '"Reset"Button is clicked. Call ShowTxData txtRxText.Text = "" If MSComm1.PortOpen = True Then MSComm1.PortOpen = False End If cmdTransmit.Enabled = TrueEnd SubPrivate Sub SetCommand() Select Case optidx Case 0 '"Communication Line Check". cmdstr = ChrB(&H2) + ChrB(&H3) + ChrB(&H40) _ + ChrB(&H0) + ChrB(&H5) cmdlen = 5 resplen = 5

7 - 41


Case 1 '"Reading Values". cmdstr = ChrB(&H2) + ChrB(&H7) + ChrB(&H41) _ + ChrB(&H0) + ChrB(&H0) + ChrB(&H1) + ChrB(&H42) _ + ChrB(&H1) + ChrB(&H0) + ChrB(&H3) + ChrB(&H85) _ + ChrB(&H0) cmdlen = 12 resplen = 15 Case 2 '"Write Value: Set OUT1" cmdstr = ChrB(&H2) + ChrB(&H8) + ChrB(&H41) _ + ChrB(&H0) + ChrB(&H1) + ChrB(&H1) + ChrB(&H42) _ + ChrB(&H1) + ChrB(&H0) + ChrB(&H1) + ChrB(&H3) _ + ChrB(&H87) + ChrB(&H0) cmdlen = 12 resplen = 10 Case 3 '"Write Value: Reset OUT1" cmdstr = ChrB(&H2) + ChrB(&H8) + ChrB(&H41) _ + ChrB(&H0) + ChrB(&H1) + ChrB(&H1) + ChrB(&H42) _ + ChrB(&H1) + ChrB(&H0) + ChrB(&H0) + ChrB(&H3) _ + ChrB(&H86) + ChrB(&H0) cmdlen = 12 resplen = 10 Case 4 '"RUN Request" cmdstr = ChrB(&H2) + ChrB(&H4) + ChrB(&H41) _ + ChrB(&H0) + ChrB(&H10) + ChrB(&H1) + ChrB(&H3) _ + ChrB(&H52) + ChrB(&H0) cmdlen = 9 resplen = 6 Case 5 '"STOP Request" cmdstr = ChrB(&H2) + ChrB(&H4) + ChrB(&H41) _ + ChrB(&H0) + ChrB(&H10) + ChrB(&H0) + ChrB(&H3) _ + ChrB(&H51) + ChrB(&H0) cmdlen = 9 resplen = 6 End SelectEnd SubPrivate Sub ShowTxData() Dim TxDataStr As String Dim ByteData As Byte Dim j As Integer txtTxText.Text = "" txtRxText.Text = "" For j = 1 To cmdlen ByteData = AscB(MidB(cmdstr, j, 1)) TxDataStr = TxDataStr + Right$("00" + Hex$(ByteData), 2) & " " Next txtTxText.Text = TxDataStrEnd Sub

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Private Sub ShowRxData(rxdata As Variant, rxdatalen As Integer) Dim DataStr As String Dim j As Integer Dim Re As String If rxdatalen > 0 Then For j = 0 To rxdatalen - 1 Re = rxdata(j) DataStr = DataStr + Right$("00" + Hex$(Re), 2) & " " Next ElseIf rxdatalen = 0 Then DataStr = "No data received" Else DataStr = "Communication Reset" End If txtRxText.Text = DataStrEnd SubPrivate Function PortOpen() As Boolean Dim message As Variant

On Error GoTo ErrorHandler If MSComm1.PortOpen = True Then PortOpen = False

Else With MSComm1 .InputLen = 0 .InputMode = comInputModeBinary .PortOpen = True End With Call StartTimer Do DoEvents Loop Until timecnt > 1 Call StopTimer PortOpen = True End If Exit Function

ErrorHandler: txtRxText.Text = "Error! Wrong Port Setup or Port in use." PortOpen = False

End FunctionPrivate Sub PortClose() MSComm1.PortOpen = FalseEnd SubPrivate Sub SendCmnd() MSComm1.Output = cmdstrEnd SubPrivate Sub RecResponse(ByRef rxdata As Variant, ByRef lenrxdata As Integer) Call StartTimer

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'Wait until the number of 'LenRxData' byte were received or timeout. Do DoEvents Loop Until (MSComm1.InBufferCount >= lenrxdata) Or (timecnt >= 10) Call StopTimer If MSComm1.PortOpen = True Then lenrxdata = MSComm1.InBufferCount rxdata = MSComm1.Input Call PortClose Else lenrxdata = -1 End IfEnd SubPrivate Sub Timer1_Timer() timecnt = timecnt + 1End SubPrivate Sub StartTimer() timecnt = 0 Timer1.Enabled = TrueEnd SubPrivate Sub StopTimer() Timer1.Enabled = FalseEnd Sub

4. Compile the project and run the application

Unless there is no change made to the code above and the MSComm1 default setup isnot changed, the example application communicates by serial port 1 at 9600 bps, 8 bit,no parity, 1 stopp bit with AL2 station number 0.

7 - 44

α2 Simple Application Controllers Dedicated Protocol Error Diagnostics 8

8. Dedicated Protocol Error Diagnostics

The α2 controller has a number of Diagnostic messages in both the controller and the VLSsoftware.

8.1 Check points for Dedicated Protocol

Table 8.1: Dedicated Protocol Hardware and Communication Checks

Error Check Points

No communicat ion ispossible


PC COM port is used in another application. Shut down other applications.

An α2 COM port is used in another application. Shut down other applications.

The “Other” setting has not been made in the α2 main body or the VLSsoftware.

Power has not been cycled after choosing the “Other” setting.

Switching between programming protocol and dedicated protocol will causethe PLC and PC to stop communicating. Check that the Check Sum calculation is correct.

Sum Check Error (01H)

Check that the wiring connections are properly made.

Check that the pin assignments are correct on the user-made cross-cable.

Check that considerations have been made for noise sources.

Protocol Error (02H)

Check that the wiring connections are properly made.

Check that the pin assignments are correct on the user-made cross-cable.

Check that considerations have been made for noise sources.

Check that the commands for READ, WRITE, or RUN/STOP are correct.

Device Error (03H)Check that the Device Status setting value is within the intended device’srange.

Check that the Write Protect for the memory cassette is not enabled.

Remote Error (04H) Check the controller program for errors.

Date/Time Error(05H) Check the Date and Time for errors.

8 - 1

α2 Simple Application Controllers Dedicated Protocol Error Diagnostics 8

MEMO

8 - 2

HEAD OFFICE: MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100-8310HIMEJI WORKS: 840, CHIYODA CHO, HIMEJI, JAPAN

JY992D97701D(MEE)

Effective August. 2005Specifications are subject to change without notice.

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